Coil cap and automobile retarder

Abstract

The application discloses a coil cover cap and an automobile retarder, and relates to the technical field of the automobile retarder, which comprises a cover cap body, wherein the outline size of the cover cap body is arranged according to the outline size of a coil, a baffle strip is arranged on the cover cap body, and the baffle strip is arranged along the edge outline of the cover cap body; further comprising a stator assembly and a rotor disc, wherein the stator assembly comprises a stator disc and a plurality of coils, a plurality of pole columns are arranged on the stator disc, the plurality of pole columns are uniformly distributed in a circumferential array on the stator disc, the plurality of coils are respectively sleeved on the plurality of pole columns, the stator disc and the rotor disc are matched to clamp the coils, the cover cap body is matched with the baffle strip to cover one end of the coil away from the stator disc, and the cover cap body and the baffle strip are provided with a plurality of groups corresponding to the plurality of coils. The application has the effects of preventing the coil from being damaged or short-circuited due to exposure, guaranteeing the insulation performance of the coil and the stability of the retarder.

Description

Technical Field

[0001] This application relates to the technical field of automobile retarders, and in particular to a coil cap and an automobile retarder. Background Technology

[0002] As an auxiliary braking device for vehicles, the automotive retarder is mainly composed of a stator assembly and a rotor disk. The stator assembly is energized by the control circuit to generate an electromagnetic field. The rotor disk rotates at high speed with the vehicle's transmission parts, cutting magnetic lines of force, thereby generating a torque in the rotor disk that is opposite to its own rotation direction, thus achieving the deceleration effect of the vehicle.

[0003] The stator assembly includes a stator disk, coils, and pole plates. In actual production, the coil is first wound into a hollow cylinder with its top and bottom connected. Then, an insulating sealing layer is wrapped around the coil to prevent it from being exposed. The insulating sealing layer can block dust, moisture, oil, and other external substances from contacting the coil, preventing these contaminants from corroding the coil and reducing the damage to the coil from the external environment, thereby extending the coil's service life. At the same time, it ensures the electrical insulation of the coil, indirectly ensuring the overall performance and stability of the vehicle retarder. Finally, the coil is fitted onto the poles of the stator disk, with the pole plates located between the coil and the rotor disk. Then, the rotor disk is installed to work with the stator disk to clamp and fix the coil, completing the assembly of the retarder.

[0004] However, during the actual winding of the insulation sealing layer, deviations in the winding position of the insulation sealing layer may occur, which may result in the coil near the upper stator plate not being completely covered by the insulation sealing layer, leaving that part of the coil exposed. This can lead to the coil being corroded, damaged, or short-circuited, causing the car retarder to fail. Utility Model Content

[0005] To address the problem that deviations in the winding position of the insulation sealing layer can prevent coils far from the stator disk from being fully covered by the insulation sealing layer, this application provides a coil cap and an automotive retarder.

[0006] First aspect: This application provides a coil cap, which adopts the following technical solution: A coil cap and a car retarder are disclosed, comprising a cap body, wherein the outline size of the cap body is set to correspond to the outline size of the coil, and a baffle is provided on the cap body, the baffle being set along the edge outline of the cap body.

[0007] By adopting the above technical solution, by setting a cap body whose outline size is adapted to the coil, and setting a baffle strip extending along the outline on the edge of the cap body, the exposed area of ​​the coil can be covered to prevent external pollutants such as dust, water vapor, and oil from corroding the coil, preventing the coil from being damaged or short-circuited due to exposure, and ensuring the insulation performance of the coil and the stability of the retarder.

[0008] Preferably, the cap body has a positioning hole for positioning and installation in conjunction with the pole post.

[0009] By adopting the above technical solution, the positioning hole can achieve precise positioning and installation of the cap body and the pole post. While assisting the quick installation of the cap body, it can also prevent the cap from shifting or deviating during use, ensuring that the cap body can be stably covered in the exposed area of ​​the coil.

[0010] Preferably, the cap body and the retaining strip are integrally injection molded from plastic material.

[0011] By adopting the above technical solutions, on the one hand, the plastic material has good insulation properties, which enhances the insulation protection of the coil; on the other hand, the one-piece injection molding process ensures the integrity and sealing of the structure, reduces the gaps between parts, improves the protective effect, and reduces the complexity of production.

[0012] Preferably, there are two cap bodies, each of which is provided with a baffle; a connecting plate is provided between the two cap bodies, and the two ends of the connecting plate are respectively connected to the two cap bodies.

[0013] By adopting the above technical solution, the two cap bodies are connected into a group by a connecting plate, and the two cap bodies can simultaneously cover two adjacent coils, simplifying the installation process and improving installation efficiency.

[0014] The second aspect: This application provides a car retarder, which adopts the following technical solution: A car retarder employs a coil cap as described above, comprising a stator assembly and a rotor disk. The stator assembly includes a stator disk, several coils, and pole plates. Several pole posts are disposed on the stator disk in a uniformly distributed circular array. Several coils are respectively sleeved on the pole posts. The pole plates are located between the coils and the rotor disk, and the pole plates cooperate with the stator disk to clamp the coils. Two rotor disks are provided and located on opposite sides of the stator disk, and the two rotor disks are coaxially arranged with the stator disk. The cap body, in conjunction with a retaining strip, covers the end of the coil away from the stator disk. Several sets of the cap body and retaining strip are arranged corresponding to several coils.

[0015] By adopting the above technical solution, the coil cap is applied to the automotive retarder, so that the cap body, together with the baffle, is specifically placed on the end of the coil away from the stator disk, and the caps are set in corresponding groups according to the number of coils, so as to achieve comprehensive protection for all exposed areas of the coils and solve the problem of retarder failure caused by exposed coils as a whole.

[0016] Preferably, the pole passes through the positioning hole of the cap body.

[0017] By adopting the above technical solution, the pole post passes through the positioning hole of the cap body, realizing the precise positioning and installation of the cap body and the pole post. While assisting the quick installation of the cap body, it can also prevent the cap from shifting or deviating during use, ensuring that the cap body can be stably covered on the exposed area of ​​the coil.

[0018] Preferably, two adjacent coils are arranged as a group, and the two cap bodies connected by the connecting plate are respectively covered on the end of the two coils that form a group away from the stator disk.

[0019] By adopting the above technical solution, two adjacent coils are grouped together, and two cap bodies connected by a connecting plate are respectively fitted with two coils in the group, simplifying the installation process and improving installation efficiency.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting a cap body whose outline size is adapted to the coil, and setting a baffle strip extending along the outline on the edge of the cap body, the exposed area of ​​the coil can be covered to prevent external pollutants such as dust, water vapor, and oil from corroding the coil, preventing the coil from being damaged or short-circuited due to exposure, and ensuring the insulation performance of the coil and the stability of the retarder. 2. Pass the pole through the positioning hole of the cap body to achieve precise positioning and installation of the cap body and the pole. While assisting the quick installation of the cap body, it can also prevent the cap from shifting or deviating during use, ensuring that the cap body can be stably covered on the exposed area of ​​the coil. 3. Group two adjacent coils together, and fit two coils from the group onto the two cap bodies connected by the connecting plate, simplifying the installation process and improving installation efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the cap in Embodiment 1 of this application; Figure 2 This is a schematic diagram of the overall structure of the retarder in Embodiment 1 of this application; Figure 3 This is an exploded view of the retarder in Embodiment 1 of this application; Figure 4 This is a schematic diagram of the overall structure of the cap in Embodiment 2 of this application; Figure 5 This is a schematic diagram of the overall structure of the retarder in Embodiment 2 of this application; Figure 6 This is an exploded view of the retarder in Embodiment 2 of this application.

[0022] Reference numerals in the attached drawings: 1. Cap body; 2. Stop bar; 3. Positioning hole; 4. Stator assembly; 41. Stator disc; 42. Coil; 43. Pole plate; 5. Rotor disc; 6. Pole post; 7. Connecting plate. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail.

[0024] Example 1: This application discloses a coil cap.

[0025] refer to Figure 1 A coil cap includes a cap body 1 and a baffle 2. The outline size of the cap body 1 corresponds to the outline size of the coil 42. The baffle 2 is integrally formed along the edge outline of the cap body 1. In this embodiment, the baffle 2 is arranged around the edge of the cap body 1 in a semi-circle. The cap body 1 and the baffle 2 are integrally injection molded from plastic material.

[0026] By setting a cap body 1 with an outline size that matches the coil 42, and setting a baffle 2 extending along the outline on the edge of the cap body 1, the exposed area of ​​the coil 42 can be covered to prevent external pollutants such as dust, water vapor, and oil from corroding the coil 42, preventing the coil 42 from being damaged or short-circuited due to exposure, and ensuring the insulation performance of the coil 42 and the stability of the retarder.

[0027] The cap body 1 has a positioning hole 3 for positioning and installation with the pole post 6, so that the cap body 1 forms a ring structure. The positioning hole 3 can realize the precise positioning and installation of the cap body 1 and the pole post 6. While assisting the cap body 1 to be installed quickly, it can also prevent the cap from shifting or deviating during use, ensuring that the cap body 1 can be stably covered in the exposed area of ​​the coil 42.

[0028] This application also discloses an automobile retarder.

[0029] refer to Figure 2 An automobile retarder includes a stator assembly 4, a rotor disk 5, and the aforementioned cap; two rotor disks 5 are provided and are respectively located on both sides of the stator assembly 4, and the stator assembly 4 and the two rotor disks 5 are assembled to form a retarder.

[0030] refer to Figure 2 and Figure 3The stator assembly 4 includes a stator disk 41, several coils 42, and pole plates 43. Several pole posts 6 are welded and fixed on the stator disk 41. The pole posts 6 are evenly distributed in a circular array on the stator disk 41. The number of coils 42 corresponds to the number of pole posts 6. The coils 42 are respectively sleeved on the pole posts 6. The pole plates 43 are located between the coils 42 and the rotor disk 5. The pole plates 43 cooperate with the stator disk 41 to clamp the coils 42. The two rotor disks 5 are coaxially arranged with the stator disk 41 and clamp the stator assembly 4.

[0031] The pole post 6 is set through the positioning hole 3 of the cap, and the cap is placed on the end of the coil 42 away from the stator disk 41; the cap is set in several groups corresponding to several pole posts 6.

[0032] The implementation principle of this application embodiment is as follows: a cap is provided at the end of the coil 42 away from the stator disk 41. The baffle 2 of the cap can cover the exposed area of ​​the coil 42 away from the stator disk 41, blocking external pollutants such as dust, water vapor, and oil from corroding the coil 42, preventing the coil 42 from being damaged or short-circuited due to exposure, and ensuring the insulation performance of the coil 42 and the stability of the retarder.

[0033] Example 2: refer to Figure 4 The difference between this embodiment and Embodiment 1 is that a connecting plate 7 is provided between the two caps, and both ends of the connecting plate 7 are connected to the cap bodies 1 of the two caps respectively. The connecting plate 7 is integrally formed with the two caps; see reference. Figure 5 and Figure 6 Two adjacent coils 42 form a group, and the two caps connected by the connecting plate 7 are respectively placed on the end of the two coils 42 that form a group away from the stator plate 41.

[0034] The implementation principle of this application embodiment is as follows: two adjacent coils 42 are grouped together, and two cap bodies 1 connected by the connecting plate 7 are respectively fitted with two coils 42 in the group, which simplifies the installation process and improves the installation efficiency.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A coil cap, characterized in that, Includes a cap body (1), the outline size of the cap body (1) is set to correspond to the outline size of the coil (42), and a baffle (2) is provided on the cap body (1), the baffle (2) is set along the edge outline of the cap body (1).

2. A coil cap according to claim 1, characterized in that, The cap body (1) has a positioning hole (3) for positioning and installation with the pole post (6).

3. A coil cap according to claim 2, characterized in that, The cap body (1) and the baffle (2) are integrally injection molded from plastic material.

4. A coil cap according to claim 1, characterized in that, There are two cap bodies (1), and each cap body (1) is provided with a baffle (2); a connecting plate (7) is provided between the two cap bodies (1), and the two ends of the connecting plate (7) are respectively connected to the two cap bodies (1).

5. A car retarder, employing a coil cap as described in any one of claims 1-4, comprising a stator assembly (4) and a rotor disk (5), wherein the stator assembly (4) comprises a stator disk (41), several coils (42), and a pole plate (43), wherein a plurality of pole posts (6) are disposed on the stator disk (41), the plurality of pole posts (6) being evenly distributed in a circular array on the stator disk (41), the plurality of coils (42) being respectively sleeved on the plurality of pole posts (6), the pole plate (43) being located between the coils (42) and the rotor disk (5), the pole plate (43) cooperating with the stator disk (41) to clamp the coils (42), and two rotor disks (5) are provided and respectively located on both sides of the stator disk (41), the two rotor disks (5) being coaxially disposed with the stator disk (41); characterized in that, The cap body (1) and the baffle (2) are covered on the end of the coil (42) away from the stator disk (41). The cap body (1) and the baffle (2) are arranged in several groups corresponding to several coils (42).

6. A car retarder according to claim 5, characterized in that, The pole (6) passes through the positioning hole (3) of the cap body (1).

7. A car retarder according to claim 5, characterized in that, Two adjacent coils (42) are arranged as a group, and the two cap bodies (1) connected by the connecting plate (7) are respectively covered on the end of the two coils (42) that are far away from the stator disk (41).

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