Steering gear durability test heat dissipation fixture and heat dissipation connector

Abstract

This utility model discloses a heat dissipation fixture and heat dissipation connector for a steering gear durability test, relating to the field of steering gear technology. It includes a first heat-conducting plate and a second heat-conducting plate detachably connected to the first heat-conducting plate. The first heat-conducting plate has a first arc-shaped groove, and the second heat-conducting plate has a second arc-shaped groove. When the first and second heat-conducting plates are connected together, the first and second arc-shaped grooves together form a through hole for covering the motor housing. The second heat-conducting plate has a connecting hole for connecting a water-cooled heat dissipation component. In use, the first and second arc-shaped grooves are respectively engaged on the outer peripheral wall of the motor housing. The water-cooled heat dissipation component is connected to the second heat-conducting plate, and heat is dissipated from the motor through the second and first heat-conducting plates, achieving tight coverage and heat conduction, significantly improving heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steering gear technology, specifically to a heat dissipation fixture and heat dissipation connector for steering gear durability testing. Background Technology

[0002] In automotive steering system durability tests, the electric motor, as the core drive unit for power steering, needs to operate continuously under extreme conditions. The test standards require simulating the entire life cycle of the vehicle, and the motor must repeatedly output power at its rated torque, with each load lasting 2-5 minutes. Under this high-intensity working condition, the copper losses in the motor windings and the eddy current losses in the core increase dramatically. At the same time, the air convection efficiency in the enclosed space of the test bench is insufficient, leading to an exponential increase in heat accumulation in the casing.

[0003] Traditional heat dissipation methods have significant drawbacks, namely low airflow circulation efficiency in the closed environment of the test bench, and insufficient fit of the heat sink due to the curved surface of the motor housing, which cannot meet the test temperature control requirements. Although water cooling systems can be used, such as the integrated water cooling radiator in patent CN202320405710.7, its water cooling head has a planar structure, which cannot tightly cover the curved surface of the motor housing, resulting in air gap thermal resistance and a decrease in thermal conductivity of more than 40%. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a heat dissipation fixture and heat dissipation connector for a steering gear durability test. The first arc-shaped groove and the second arc-shaped groove are respectively clamped onto the outer peripheral wall of the motor housing. The water-cooled heat dissipation component is connected to the second heat-conducting plate to achieve tight wrapping and heat conduction, thereby significantly improving heat dissipation efficiency.

[0005] The technical solution adopted by this utility model is as follows: a heat dissipation connector for a steering gear durability test, including a first heat-conducting plate and a second heat-conducting plate detachably connected to the first heat-conducting plate. The first heat-conducting plate is provided with a first arc-shaped groove, and the second heat-conducting plate is provided with a second arc-shaped groove. When the first heat-conducting plate and the second heat-conducting plate are connected together, the first arc-shaped groove and the second arc-shaped groove together form a through hole for covering the motor housing. The second heat-conducting plate is provided with a connection hole for connecting a water-cooled heat dissipation component.

[0006] Optionally, the first heat-conducting plate and the second heat-conducting plate are fastened together by a first screw. The first heat-conducting plate is provided with a first screw hole through which the first screw passes, and the second heat-conducting plate is provided with a second screw hole that mates with the first screw.

[0007] Optionally, one side wall of the second heat-conducting plate is provided with a clearance groove for the power supply wiring harness to pass through.

[0008] Optionally, the first heat-conducting plate has first lugs on both sides, and the first screw hole passes through both ends of the first lugs.

[0009] Optionally, the first arc-shaped groove extends to both sides to form a first arc-shaped plate, and the second arc-shaped groove extends to both sides to form a second arc-shaped plate.

[0010] This utility model also discloses a heat dissipation fixture for steering gear durability testing, characterized in that it includes a heat dissipation component and the aforementioned heat dissipation connector for steering gear durability testing. The heat dissipation component includes a water cooling head, a heat pipe, and a water drain connected in sequence, and the water cooling head is detachably connected to a second heat-conducting plate.

[0011] Optionally, the water cooling head is fastened to the second heat-conducting plate by a second screw, the connection hole is a third screw hole for the second screw to pass through, and the water cooling head is provided with a fourth screw hole that mates with the second screw.

[0012] Optionally, the water cooling head is provided with second lugs on both sides, and the fourth screw hole passes through both ends of the second lugs.

[0013] The beneficial effects of this utility model are: when in use, the first arc-shaped groove and the second arc-shaped groove are respectively clamped on the outer peripheral wall of the motor housing, the water-cooled heat dissipation component is connected to the second heat-conducting plate, and the motor is cooled through the second heat-conducting plate and the first heat-conducting plate, so as to achieve tight wrapping and heat conduction, and significantly improve the heat dissipation efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the heat dissipation connector for the steering gear durability test proposed in an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the heat dissipation fixture for steering gear durability testing proposed in an embodiment of this utility model;

[0016] Figure 3 This is a schematic diagram of the heat dissipation fixture for steering gear durability testing and the motor assembly proposed in this embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram illustrating the application environment of the heat dissipation fixture for steering gear durability testing proposed in this embodiment of the utility model.

[0018] The labels in the attached figures are as follows: 1. First heat-conducting plate; 11. First arc-shaped groove; 12. First lug; 13. First arc-shaped plate; 2. Second heat-conducting plate; 21. Second arc-shaped groove; 22. Connecting hole; 23. Clearance groove; 24. Second arc-shaped plate; 3. First screw; 4. Water cooling head; 41. Second lug; 5. Heat-conducting pipe; 6. Water drain; 7. Second screw; 8. Steering mechanism; 81. Motor; 82. Wiring harness; 9. Sealed chamber. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 4 As shown in the figure, this embodiment discloses a heat dissipation connector for a steering gear durability test, including a first heat-conducting plate 1 and a second heat-conducting plate 2 detachably connected to the first heat-conducting plate 1. The first heat-conducting plate 1 has a first arc-shaped groove 11, and the second heat-conducting plate 2 has a second arc-shaped groove 21. When the first heat-conducting plate 1 and the second heat-conducting plate 2 are connected together, the first arc-shaped groove 11 and the second arc-shaped groove 21 together form a through hole for covering the housing of a motor 81. The second heat-conducting plate 2 has a connecting hole 22 for connecting a water-cooled heat dissipation component. In use, the first arc-shaped groove 11 and the second arc-shaped groove 21 are respectively engaged on the outer peripheral wall of the housing of the motor 81, and the water-cooled heat dissipation component is connected to the second heat-conducting plate 2. The motor 81 is cooled through the second heat-conducting plate 2 and the first heat-conducting plate 1, achieving tight coverage and heat conduction, and significantly improving heat dissipation efficiency.

[0021] like Figure 1 As shown, in this embodiment, the first heat-conducting plate 1 and the second heat-conducting plate 2 are fastened together by a first screw 3. The first heat-conducting plate 1 has a first screw hole through which the first screw 3 passes, and the second heat-conducting plate 2 has a second screw hole that mates with the first screw 3. The detachable connection structure facilitates disassembly and maintenance.

[0022] like Figure 1 As shown, in this embodiment, one side wall of the second heat-conducting plate 2 is provided with a relief groove 23 for the power supply wiring harness 82 of the motor 81 to pass through. This prevents the wiring harness 82 from being squeezed and damaged, and also prevents the wiring harness 82 from obstructing the contact between the heat-conducting plate and the motor 81 housing, thus ensuring heat dissipation stability.

[0023] like Figure 1 As shown, in this embodiment, the first heat-conducting plate 1 has first lugs 12 on both sides, and the first screw hole passes through both ends of the first lugs 12. The first lugs 12 cooperate with the first screws 3 to provide a stable locking force, ensuring that the heat-conducting plate is in close contact with the motor 81 housing, reducing thermal resistance; at the same time, it is convenient for disassembly and maintenance.

[0024] like Figure 1 As shown, in this embodiment, the first arc-shaped groove 11 extends to both sides to form a first arc-shaped plate 13, and the second arc-shaped groove 21 extends to both sides to form a second arc-shaped plate 24. The first arc-shaped plate 13 and the second arc-shaped plate 24 increase the contact area with the motor 81, thereby increasing the cooling effect. The arc-shaped structure of the first arc-shaped plate 13 and the second arc-shaped plate 24 enhances the adaptability to the enclosure of the motor 81 housing.

[0025] like Figures 2-4As shown, this embodiment also discloses a heat dissipation fixture for a steering gear durability test. Its features include the aforementioned heat dissipation connector for the steering gear 8 durability test. The heat dissipation assembly includes a water-cooling head 4, a heat-conducting pipe 5, and a water outlet 6 connected in sequence. The water-cooling head 4 is detachably connected to the second heat-conducting plate 2. Through modular design, the heat dissipation connector is integrated with the water-cooling system. The water-cooling head 4 quickly dissipates heat from the motor 81, and the heat-conducting pipe 5 extends out of the sealed chamber 9 and connects to the water outlet 6 outside the sealed chamber 9, achieving efficient heat exchange and meeting the heat dissipation requirements of long-term durability testing. The water-cooling head 4, heat-conducting pipe 5, and water outlet 6 in this embodiment are prior art; refer to patent CN202320405710.7 for an integrated water-cooled radiator.

[0026] like Figure 1 As shown, in this embodiment, the water-cooling head 4 and the second heat-conducting plate 2 are fastened together by the second screw 7. The connecting hole 22 is a third screw hole through which the second screw 7 passes, and the water-cooling head 4 is provided with a fourth screw hole that mates with the second screw 7. The connection of the second screw 7 ensures that there is no gap between the water-cooling head 4 and the heat-conducting plate, maximizing the heat conduction efficiency; the detachable structure facilitates the replacement or maintenance of the heat dissipation components.

[0027] like Figure 2 As shown, the water-cooling head 4 in this embodiment is provided with second lugs 41 on both sides, and the fourth screw hole passes through both ends of the second lugs 41. The structure of the second lugs 41 provides uniform force support for the second screw 7 to prevent loosening of the connection; at the same time, it increases the contact area between the water-cooling head 4 and the second heat-conducting plate 2, and improves the uniformity of heat conduction.

[0028] It is understood that the specific embodiments described above are merely for explaining the relevant utility model and not for limiting the utility model. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict with each other. All equivalent structural transformations made based on the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly included within the protection scope of this utility model.

Claims

1. A heat dissipation connector for a steering gear durability test, characterized in that, It includes a first heat-conducting plate and a second heat-conducting plate detachably connected to the first heat-conducting plate. The first heat-conducting plate is provided with a first arc-shaped groove, and the second heat-conducting plate is provided with a second arc-shaped groove. When the first heat-conducting plate and the second heat-conducting plate are connected together, the first arc-shaped groove and the second arc-shaped groove together form a through hole for covering the motor housing. The second heat-conducting plate is provided with a connection hole for connecting a water-cooled heat dissipation component.

2. The heat dissipation connector for steering gear durability testing according to claim 1, characterized in that, The first heat-conducting plate and the second heat-conducting plate are fastened together by a first screw. The first heat-conducting plate is provided with a first screw hole through which the first screw passes, and the second heat-conducting plate is provided with a second screw hole that mates with the first screw.

3. The heat dissipation connector for steering gear durability testing according to claim 1, characterized in that, The second heat-conducting plate has a clearance groove on one side wall for the power supply wiring harness to pass through.

4. The heat dissipation connector for steering gear durability testing according to claim 2, characterized in that, The first heat-conducting plate has first lugs on both sides, and the first screw hole passes through both ends of the first lugs.

5. The heat dissipation connector for steering gear durability testing according to claim 1, characterized in that, The first arc-shaped groove extends to both sides to form a first arc-shaped plate, and the second arc-shaped groove extends to both sides to form a second arc-shaped plate.

6. A heat dissipation fixture for a steering gear durability test, characterized in that, The device includes a heat dissipation assembly and a heat dissipation connector for steering gear durability testing as described in any one of claims 1 to 5. The heat dissipation assembly includes a water cooling head, a heat pipe, and a water drain connected in sequence. The water cooling head is detachably connected to a second heat-conducting plate.

7. The heat dissipation fixture for steering gear durability testing according to claim 6, characterized in that, The water cooling head is fastened to the second heat-conducting plate by a second screw. The connection hole is a third screw hole through which the second screw passes. The water cooling head is provided with a fourth screw hole that mates with the second screw.

8. The heat dissipation fixture for steering gear durability testing according to claim 7, characterized in that, The water cooling head is provided with second lugs on both sides, and the fourth screw hole passes through both ends of the second lugs.

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