Modularized heat dissipation shell of tractor drive-by-wire chassis controller

Abstract

The utility model relates to a modularized heat dissipation shell of a tractor drive-by-wire chassis controller, which comprises an upper mounting layer and a lower heat dissipation layer, the upper mounting layer is fixed on a tractor chassis through bolts, and the surface of an aluminum substrate in the upper mounting layer is provided with grid grooves and coated with heat-conducting silicone grease for fixing a controller circuit board; the lower heat dissipation layer is detachably connected with the upper mounting layer through an elastic buckle, heat dissipation fins, a cross-flow fan and a drawable filter element are arranged in the lower heat dissipation layer, and an aluminum nitride coating is sprayed on the surfaces of the heat dissipation fins to enhance the heat dissipation efficiency. During assembly, the silica gel pad at the top of the lower heat dissipation layer is compressed to generate contact pressure, so that heat conduction stability is ensured; and the buckle adopts a linkage structure of a threaded telescopic column and a clamping plate, so that quick disassembly and assembly and vibration displacement compensation are supported. Through the modularized heat dissipation assembly and the elastic pressing design, the heat dissipation efficiency is improved, the maintenance cost is reduced, meanwhile, the dustproof and anti-seismic performance is achieved, and the heat dissipation assembly is suitable for long-term stable operation of the tractor drive-by-wire chassis controller.

Description

Technical Field

[0001] This utility model relates to the field of tractor parts technology, and in particular to a modular heat dissipation housing for a tractor drive-by-wire chassis controller. Background Technology

[0002] Existing controller heat sinks mostly use a one-piece design, which has the following problems:

[0003] The heat sink is fixed to the housing, and partial damage requires replacement of the entire unit; maintenance requires disassembling the whole machine, which is cumbersome; the dustproof structure is not removable, and dust accumulation will affect the heat dissipation efficiency.

[0004] To address this issue, this application designs a modular heat dissipation housing for a tractor drive-by-wire chassis controller. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, this utility model provides a modular heat dissipation housing for a tractor drive-by-wire chassis controller.

[0006] A modular heat dissipation housing for a tractor drive-by-wire chassis controller, comprising an upper mounting layer and a lower heat dissipation layer, characterized in that:

[0007] The upper mounting layer is bolted to the controller mounting platform reserved on the tractor chassis. The controller circuit board is placed in the upper mounting layer. The lower heat dissipation layer is detachably connected below the upper mounting layer by a snap fastener. The lower heat dissipation layer is equipped with detachable heat dissipation fins, a filter element and a cross-flow fan.

[0008] Furthermore, in order to better realize this utility model, an aluminum substrate is fixedly connected to the upper mounting layer, a groove is opened on the upper surface of the aluminum substrate, thermal grease is applied to the top of the aluminum substrate and the controller circuit board is attached thereto, and the heat dissipation fins in the lower heat dissipation layer are attached to the bottom of the aluminum substrate by a silicone pad.

[0009] Furthermore, in order to better realize this utility model, the buckle includes a rotatable threaded telescopic post, and a card plate is connected to the threaded telescopic post.

[0010] Furthermore, in order to better realize this utility model, the lower heat dissipation layer includes a rectangular shell with ventilation grilles on both sides of the shell. A heat dissipation fin mounting groove and a filter element mounting groove are respectively opened on one side of the shell. Heat dissipation fins and filter elements are removably installed in the heat dissipation fin mounting groove and the filter element mounting groove. The heat dissipation fins are attached to the aluminum substrate through a silicone pad. A cross-flow fan is provided between the heat dissipation fins and the filter element.

[0011] Furthermore, in order to better realize this utility model, the surface of the heat dissipation fins is coated with an aluminum nitride ceramic coating.

[0012] The beneficial effects of this utility model are:

[0013] Modular maintenance: Heat sink fins and filter elements can be pulled out and replaced individually, reducing maintenance time; Dustproof and self-cleaning: Filter elements can be disassembled and cleaned independently, avoiding downtime for maintenance. Attached Figure Description

[0014] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention from an upward perspective;

[0016] Figure 3 This is a bottom perspective view of the upper mounting layer of this utility model;

[0017] Figure 4 This is a top perspective view of the lower heat dissipation layer of this utility model.

[0018] In the picture,

[0019] 1. Upper mounting layer; 2. Lower heat dissipation layer; 3. Clip; 101. Aluminum substrate; 201. Heat dissipation fin mounting slot; 202. Heat dissipation fin; 203. Filter element mounting slot; 204. Filter element; 205. Cross-flow fan; 206. Ventilation grille; 301. Threaded telescopic column; 302. Clip plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Figures 1-4 This is a specific embodiment of the present invention, which is a modular heat dissipation housing for a tractor drive-by-wire chassis controller.

[0023] 1. Housing assembly process:

[0024] a. Pre-installation preparation:

[0025] The controller circuit board is fixed to the surface of the aluminum substrate 101 of the upper mounting layer 1 with 4 sets of M4 stainless steel screws. Thermal grease (model: T-Global TG9400) is evenly applied in the groove. The silicone pad is attached to the top plane of the heat dissipation fins of the lower heat dissipation layer 2.

[0026] b. Pressing the lower heat dissipation layer:

[0027] Align the lower heat dissipation layer 2 with the bottom surface of the upper mounting layer 1, and apply 10-15N of pressure downwards to cause the silicone pad to undergo 30% compression deformation (the thickness after compression is 3.5mm). At this time, the distance between the upper and lower layers is reduced until the contact surfaces are completely in contact.

[0028] Elastic locking mechanism: The rebound force of the silicone pad continuously provides a contact pressure of 0.15-0.2MPa, ensuring stable heat conduction between the aluminum substrate 101 and the heat sink 202.

[0029] c. Buckle locking operation:

[0030] Rotate the threaded telescopic post 301 of the buckle 3 while keeping the lower heat dissipation layer 2 pressed. Align the locking plate 302 of the buckle 3 with the bottom edge of the lower heat dissipation layer. The locking plate 302 hooks onto the edge of the slot, and then the pressing of the lower heat dissipation layer is released to complete the mechanical locking.

[0031] 2. Heat dissipation process:

[0032] Airflow path:

[0033] After the cross-flow fan 205 is started, external cold air is drawn in through the 45° inclined louvers of the ventilation grille 206 on one side of the lower heat dissipation layer 2 (wind speed ≥2m / s); the airflow flows out through the ventilation grille 206 on the other side via the heat dissipation fins 202; the filter element 204 will intercept particles with a diameter >0.5mm to prevent clogging of the heat dissipation fins.

[0034] Heat conduction path:

[0035] Controller heating element → thermal grease → aluminum substrate 101 → silicone pad → heat sink 202 → forced convection cooling.

[0036] 3. Maintenance Operations:

[0037] Filter element cleaning: Pull the filter element 204 directly out of the filter element installation slot 203, rinse with clean water, and then let it dry before resetting.

[0038] Replacement of heat dissipation module:

[0039] Rotate the buckle 3 to release the lock and remove the lower heat dissipation layer 2; horizontally pull out the damaged heat dissipation fin 202 from the heat dissipation fin mounting slot 201, replace with a new module and reassemble.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A modular heat dissipation housing for a tractor drive-by-wire chassis controller, comprising an upper mounting layer (1) and a lower heat dissipation layer (2), characterized in that: The upper mounting layer (1) is bolted to the controller mounting platform reserved on the tractor chassis. The controller circuit board is placed in the upper mounting layer (1). The lower heat dissipation layer (2) is detachably connected below the upper mounting layer (1) by a buckle (3). The lower heat dissipation layer (2) is provided with detachable heat dissipation fins (202), filter element (204) and cross-flow fan (205).

2. The modular heat dissipation housing of the tractor drive-by-wire chassis controller according to claim 1, characterized in that: An aluminum substrate (101) is fixedly connected to the upper mounting layer (1). A groove is opened on the upper surface of the aluminum substrate (101). Thermal grease is applied to the top of the aluminum substrate (101) and the controller circuit board is attached thereto. The heat dissipation fins (202) in the lower heat dissipation layer (2) are attached to the bottom of the aluminum substrate (101) by means of a silicone pad.

3. The modular heat dissipation housing of the tractor drive-by-wire chassis controller according to claim 1, characterized in that: The buckle (3) includes a rotatable threaded telescopic post (301) with a connecting plate (302) on the threaded telescopic post (301).

4. The modular heat dissipation housing of the tractor drive-by-wire chassis controller according to claim 1, characterized in that: The lower heat dissipation layer (2) includes a rectangular shell with ventilation grilles (206) on both sides of the shell. A heat dissipation fin mounting groove (201) and a filter mounting groove (203) are respectively opened on one side of the shell. Heat dissipation fins (202) and filter elements (204) are removable in the heat dissipation fin mounting groove (201) and the filter mounting groove (203). The heat dissipation fins (202) are attached to the aluminum substrate (101) through a silicone pad. A cross-flow fan (205) is provided between the heat dissipation fins (202) and the filter elements (204).

5. The modular heat dissipation housing of the tractor drive-by-wire chassis controller according to claim 1, characterized in that: The surface of the heat dissipation fins (202) is coated with an aluminum nitride ceramic coating.

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