Turbocharger motor casing

Abstract

The utility model discloses a motor casing of a turbocharger. The motor casing comprises a casing, an end cover and a flange, a first installation step is arranged on the inner wall of the opening end of the machine shell, the end cover is arranged on the first installation step, and the end cover is in interference fit with the inner wall of the machine shell. A plurality of connecting blocks and supporting blocks are arranged at the opening end of the machine shell, and a plurality of connecting grooves clamped with the connecting blocks in a matched mode are formed in the flange; the connecting block comprises a left protruding block and a right protruding block, the left protruding block and the right protruding block are symmetrically arranged, a groove is formed between the left protruding block and the right protruding block, the left protruding block is connected with the left end face of the connecting groove in a matched and clamped mode, the right protruding block is connected with the right end face of the connecting groove in a matched and clamped mode, and the supporting block abuts against the bottom face of the flange. According to the turbocharger motor casing provided by the utility model, the connection mode of the end cover, the flange and the casing is simpler, redundant connecting pieces are not needed, the connection effect is better, and the stable operation of a motor is ensured.

Description

Technical Field

[0001] This utility model relates to a turbocharger motor housing, belonging to the field of motor manufacturing technology. Background Technology

[0002] Currently, a turbocharger is a device that uses the energy of engine exhaust gases to drive a turbine, which in turn compresses the intake air to improve engine power and efficiency. It belongs to the category of forced intake systems and can increase power output while optimizing fuel economy without significantly increasing engine displacement. The main function of the turbocharger motor is to assist or independently drive the turbocharger to improve the response lag problem of traditional exhaust gas turbocharging systems, thereby enhancing engine power performance and efficiency.

[0003] As a crucial drive component of turbochargers, the performance and structure of the turbocharger motor play a decisive role in the normal operation of the turbocharger. However, existing turbocharger motors have relatively complex installation and connection structures, with cumbersome connections between various components of the motor housing, affecting the installation and use of the motor in the turbocharger. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a turbocharger motor housing that makes the connection between the end cover, flange and housing simpler, eliminates the need for extra connecting parts, improves the connection effect and ensures the stable operation of the motor.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A turbocharger motor housing, comprising a housing, an end cap, and a flange;

[0007] A first mounting step is provided on the inner wall of the opening end of the housing, and the end cover is disposed on the first mounting step, and the end cover is interference-fitted with the inner wall of the housing.

[0008] The housing has several connecting blocks and support blocks at its open end. The flange has several connecting grooves that engage with the connecting blocks. Each connecting block includes a left protrusion and a right protrusion, which are symmetrically arranged. A groove is formed between the left and right protrusions. The left protrusion engages with the left end face of the connecting groove, and the right protrusion engages with the right end face of the connecting groove. The support block abuts against the bottom surface of the flange.

[0009] The end cap abuts against the bottom surface of the flange, and a first bearing chamber is provided in the center of the end cap. The flange has a mounting hole in the center for the first bearing chamber to pass through.

[0010] Furthermore, a second mounting step is provided on the inner wall of the opening end of the housing, and the second mounting step is located below the first mounting step.

[0011] Furthermore, a mounting groove is provided on the side wall of the open end of the housing.

[0012] Furthermore, the end cap is provided with several positioning grooves.

[0013] Furthermore, the flange is provided with several cable outlet slots.

[0014] Furthermore, a second bearing chamber is provided at the end of the housing furthest from the opening.

[0015] By adopting the above technical solution, this utility model provides a connecting block on the open end of the housing and a connecting groove on the flange for pressing and engaging with the connecting block. After the end cover is installed in the housing with an interference fit, the connecting block of the housing is pressed into the connecting groove of the flange, thus completing the connection and fixation between the housing and the flange. At the same time, the flange can press the end cover tightly into the housing. This eliminates the need for screws and other complex connection structures, making the connection structure simpler and resulting in more stable motor operation. Attached Figure Description

[0016] Figure 1 This is an exploded view of the turbocharger motor housing of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the open end of the casing of this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the casing of this utility model;

[0019] Figure 4 This is a schematic diagram showing the fit between the connecting block and the connecting groove of this utility model. Detailed Implementation

[0020] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] like Figure 1 As shown, this embodiment provides a turbocharger motor housing, which includes a housing 1, an end cover 2, and a flange 3. The flange 3 is connected to the open end of the housing 1, and the end cover 2 is fixed inside the open end of the housing 1. After the entire motor assembly is completed, the motor can be installed in the turbocharger through the flange 3.

[0022] like Figure 1 , 2As shown in Figure 4, a first mounting step 11 is provided on the inner wall of the opening end of the housing 1 in this embodiment. The end cover 2 is mounted on the first mounting step 11. The end cover 2 is interference-fitted with the inner wall of the housing 1, thereby achieving radial fixation of the end cover 2.

[0023] Four connecting blocks 12 and four supporting blocks 121 are evenly distributed at the open end of the housing 1. Four connecting grooves 31 are provided on the flange 3 to engage with the connecting blocks 12. Through the engagement of the connecting blocks 12 and the connecting grooves 31, the flange 3 is firmly fixed to the supporting blocks 121 at the open end of the housing 1. The connecting block 12 includes a left protrusion 122 and a right protrusion 123, which are symmetrically arranged. A groove is formed between the left protrusion 122 and the right protrusion 123. The left protrusion 122 engages with the left end face of the connecting groove 31, and the right protrusion 123 engages with the right end face of the connecting groove 31. The supporting block 121 abuts against the bottom surface of the flange 3. Before assembly of the flange 3 and the housing 1, the shapes of the left protrusion 122 and the right protrusion 123 of the connecting block 12 are as follows: Figure 2 As shown. After the housing 1 and flange 3 are connected, the left protrusion 122 and right protrusion 123 of the connecting block 12 are inserted into the connecting groove 31 of the flange 3. Then, the left protrusion 122 and right protrusion 123 are pressed down to the left and right respectively, causing the left protrusion 122 and right protrusion 123 to deform to the left and right sides respectively, as shown. Figure 4 As shown, the left protrusion 122 and the right protrusion 123 press against the left and right end faces of the connecting groove 31, respectively. At this point, the housing 1 and the flange 3 can be firmly connected, eliminating the need for screws and other complex connection structures, making the connection structure simpler.

[0024] The end cover 2 has a first bearing chamber 21 at its center for mounting the bearing on the motor shaft. The flange 3 has a mounting hole 32 at its center for the first bearing chamber 21 to pass through. After the housing 1 and the flange 3 are connected, the bottom surface of the flange 3 presses the end cover 2 tightly, fixing the end cover 2 axially.

[0025] By fixing the end cover 2 radially and axially respectively, the end cover 2 is prevented from shaking inside the housing 1, thus ensuring the normal operation of the motor.

[0026] like Figure 1 , 2 As shown, in this embodiment, a second mounting step 13 is provided on the inner wall of the open end of the housing 1, and the second mounting step 13 is located below the first mounting step 11. The second mounting step 13 is used to mount the motor intermediate plate, which is a circular plastic part. A pair of metal plugs for external wiring are mounted on the motor intermediate plate, and a mounting groove 14 for engaging with the side wall of the motor intermediate plate is provided on the side wall of the open end of the housing 1. Figure 1 As shown, the end cover 2 has several positioning grooves 22, and the positioning blocks of the motor middle plate are inserted into the positioning grooves 22.

[0027] like Figure 1 As shown, a pair of cable outlet slots 33 are provided on the flange 3 in this embodiment. The metal inserts on the motor plate extend out from the cable outlet slots 33 for easy wiring.

[0028] like Figure 3 As shown, in this embodiment, a second bearing chamber 15 is provided at the end of the housing 1 away from the opening, and the second bearing chamber 15 is used to install the bearing on the motor shaft.

[0029] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A turbocharger motor housing, characterized in that: It includes a housing (1), an end cap (2), and a flange (3); The inner wall of the opening end of the housing (1) is provided with a first mounting step (11), and the end cover (2) is provided on the first mounting step (11). The end cover (2) is interference-fitted with the inner wall of the housing (1). The housing (1) has several connecting blocks (12) and support blocks (121) at its open end. The flange (3) has several connecting grooves (31) that engage with the connecting blocks (12). The connecting block (12) includes a left protrusion (122) and a right protrusion (123). The left protrusion (122) and the right protrusion (123) are symmetrically arranged. A groove is provided between the left protrusion (122) and the right protrusion (123). The left protrusion (122) engages with the left end face of the connecting groove (31). The right protrusion (123) engages with the right end face of the connecting groove (31). The support block (121) abuts against the bottom surface of the flange (3). The end cap (2) abuts against the bottom surface of the flange (3). The end cap (2) has a first bearing chamber (21) at its center, and the flange (3) has a mounting hole (32) at its center for the first bearing chamber (21) to pass through.

2. The turbocharger motor housing according to claim 1, characterized in that: A second mounting step (13) is provided on the inner wall of the opening end of the housing (1), and the second mounting step (13) is located below the first mounting step (11).

3. The turbocharger motor housing according to claim 1, characterized in that: The housing (1) has an installation groove (14) on the side wall of the open end.

4. The turbocharger motor housing according to claim 1, characterized in that: The end cap (2) is provided with several positioning grooves (22).

5. The turbocharger motor housing according to claim 1, characterized in that: The flange (3) is provided with several cable outlet grooves (33).

6. The turbocharger motor housing according to claim 1, characterized in that: A second bearing chamber (15) is provided at the end of the housing (1) away from the opening.

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