A noise reduction device for DC motor

Abstract

The utility model discloses a noise reduction device for a DC motor, belonging to the technical field of DC motors. The noise reduction device for a DC motor comprises a shell, two sides of the shell are respectively provided with a mounting sleeve one and a mounting sleeve two, and a bottom plate is fixedly connected to the bottom of the shell, a shock-absorbing seat is provided below the bottom plate, and mounting grooves are provided on the inner sides of the mounting sleeve one and the mounting sleeve two; nine groups of rubber columns are arranged in a surrounding shape and are installed on the inner side wall of the shell, when the motor body generates vibration during operation, the arranged rubber columns can initially buffer the vibrating motor body, two groups of shock-absorbing springs one pair of the bottom plate are used to reduce vibration, and two groups of shock-absorbing springs two are used to reduce vibration at the bottom of the bottom plate, so that the motor body can be subjected to double shock-absorbing treatment, the vibration amplitude of the motor body can be effectively reduced, the noise generated by the motor body is small, and no adverse effects are caused to the surrounding staff.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current motors, and more specifically to a noise reduction device for direct current motors. Background Art

[0002] A DC motor is an electric motor that converts direct current electrical energy into mechanical energy. It is widely used in electric traction due to its good speed regulation performance, especially in air conditioners and heaters.

[0003] Based on the above, the inventors found that: at present, the existing DC motor has a poor noise reduction effect. The DC motor will vibrate when working, and then generate noise, which will have an adverse effect on the surrounding staff. Therefore, in view of this, the existing structure is studied and improved, and a noise reduction device for a DC motor is provided, in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a noise reduction device for a DC motor, which can prevent the DC motor from having a poor noise reduction effect. The DC motor will vibrate when working, and then generate noise, which will have an adverse effect on the surrounding staff.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A noise reduction device for a DC motor comprises a shell, with a mounting sleeve 1 and a mounting sleeve 2 respectively installed on both sides of the shell, and a bottom plate fixedly connected to the bottom of the shell, a shock-absorbing seat installed below the bottom plate, mounting grooves are provided on the inner sides of the mounting sleeve 1 and the mounting sleeve 2, and rubber columns are installed inside the mounting grooves, a mounting plate is installed on the inner side wall of the shock-absorbing seat, bolt 2 is threadedly connected to the inner side of the mounting plate, and a shock-absorbing spring 1 is fixedly connected to one side of the mounting plate, a mounting seat is installed on the inner bottom of the shock-absorbing seat, bolt 3 is threadedly connected to the inner side of the mounting seat, and shock-absorbing spring 2 is fixedly connected to the top of the mounting seat.

[0009] Furthermore, a motor body is installed inside the shell, an arc plate is installed on the outer wall of the shell, two groups of heat dissipation ports are arranged inside the arc plate, and bolts are threadedly connected at four corners of the arc plate.

[0010] Furthermore, the arc plates are provided in five groups, and the five groups of arc plates are arranged in a surrounding shape on the outer side of the shell, and the inner side wall of the shell is provided with a groove, and the size of the groove is adapted to the size of the rubber column.

[0011] Furthermore, the rubber columns are provided in nine groups, and each group of rubber columns penetrates the first installation sleeve and the second installation sleeve from right to left and is connected.

[0012] Furthermore, the bolts 2 are provided in two groups, with four bolts 2 forming one group, and the bolts 2 are symmetrically arranged at the four corners of the mounting plate.

[0013] Furthermore, the shock absorbing spring 1 is provided with two groups, each group comprises six shock absorbing springs, and each group of shock absorbing springs is equidistantly distributed. The shock absorbing spring 1 is composed of a buffer spring 1 and a damper 1, and the buffer spring 1 is arranged on the outside of the damper.

[0014] Furthermore, the mounting seats are provided with two groups, each group consists of three sets of mounting seats, which are symmetrically arranged on both sides above the shock absorbing seats, and each set of the shock absorbing seats is equipped with four shock absorbing springs 2, and the shock absorbing springs 2 are composed of buffer springs 2 and dampers 2, and the buffer springs 2 are arranged on the outside of dampers 2.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] In this solution, nine groups of rubber columns are arranged in a surrounding shape and installed on the inner wall of the shell. When the motor body generates vibration during operation, the rubber columns can initially buffer the vibrating motor body. Two groups of shock-absorbing springs that are equidistantly distributed are used to reduce the shock on both sides of the bottom plate. Two groups of shock-absorbing springs are used to reduce the shock on the bottom of the bottom plate. Thus, the motor body can be double-damped, which can effectively reduce the vibration amplitude of the motor body. The noise generated by the motor body is small and will not cause adverse effects on surrounding staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the main body of the motor of the utility model;

[0020] Figure 3 It is a schematic diagram of the shock-absorbing seat of the utility model;

[0021] Figure 4 It is a schematic diagram of the interior of the shock-absorbing seat of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Shell; 101. Arc plate; 102. Heat dissipation port; 103. Bolt 1; 2. Mounting sleeve 1; 3. Bottom plate; 4. Shock-absorbing seat; 5. Mounting sleeve 2; 6. Mounting groove; 7. Rubber column; 8. Mounting plate; 9. Bolt 2; 10. Shock-absorbing spring 1; 11. Mounting seat; 12. Bolt 3; 13. Shock-absorbing spring 2. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0025] Example:

[0026] See also Figure 1-4 , a noise reduction device for a DC motor comprises a shell 1, a mounting sleeve 1 2 and a mounting sleeve 2 5 are respectively installed on both sides of the shell 1, the mounting sleeve 1 2 and the mounting sleeve 2 5 are used to install the shell 1, and a bottom plate 3 is fixedly connected to the bottom of the shell 1, a shock-absorbing seat 4 is installed below the bottom plate 3, and the shock-absorbing seat 4 supports the motor, and a mounting groove 6 is opened on the inner side of the mounting sleeve 1 2 and the mounting sleeve 2 5, and the mounting groove 6 is used to install a rubber column 7, and a rubber column 7 is installed inside the mounting groove 6, and the rubber column 7 is used to reduce the vibration amplitude of the motor body, and a mounting plate 8 is installed on the inner side wall of the shock-absorbing seat 4, and a bolt 2 9 is threadedly connected to the inner side of the mounting plate 8, and a shock-absorbing spring 10 is fixedly connected to one side of the mounting plate 8, and the shock-absorbing spring 10 performs shock absorption on both sides of the motor body, and a mounting seat 11 is installed at the inner bottom of the shock-absorbing seat 4, and a bolt 3 12 is threadedly connected to the inner side of the mounting seat 11, and a shock-absorbing spring 2 13 is fixedly connected above the mounting seat 11, and the shock-absorbing spring 2 13 performs shock absorption on the bottom of the motor body.

[0027] See also Figure 1 and Figure 2 The motor body is installed inside the shell 1, and the outer wall of the shell 1 is installed with an arc plate 101. Two groups of heat dissipation ports 102 are arranged inside the arc plate 101, and bolts 103 are threadedly connected at the four corners of the arc plate 101. The heat dissipation ports 102 can dissipate heat for the motor body.

[0028] See also Figure 1 and Figure 2 There are five groups of arc plates 101, which are arranged in a surrounding shape on the outside of the shell 1. The inner wall of the shell 1 is provided with a groove, and the size of the groove is matched with the size of the rubber column 7. By setting the groove and the rubber column 7, the amplitude of the motor body can be reduced.

[0029] See also Figure 1 and Figure 2 There are nine groups of rubber columns 7, each group of rubber columns 7 penetrates the mounting sleeve 1 2 and is connected to the mounting sleeve 2 5 from right to left. The vibration amplitude of the motor body can be reduced by setting the rubber columns 7.

[0030] See also Figure 3 and Figure 4 There are two groups of bolts 9, each group consists of four bolts 9, and the bolts 9 are symmetrically arranged at the four corners of the mounting plate 8. The mounting plate 8 and the shock absorbing seat 4 can be connected by arranging the bolts 9.

[0031] See also Figure 3 and Figure 4 There are two groups of shock absorbing springs 10, each group consists of six shock absorbing springs 10, and each group of shock absorbing springs 10 is equidistantly distributed. The shock absorbing spring 10 is composed of a buffer spring 1 and a damper 1. The buffer spring 1 is arranged on the outside of the damper. By arranging the buffer spring 1 and the damper 1, the two sides of the bottom plate 3 can be damped.

[0032] See also Figure 3 and Figure 4 There are two groups of mounting seats 11, each three sets of mounting seats 11 form a group, which are symmetrically arranged on both sides above the shock-absorbing seat 4. Each set of shock-absorbing seat 4 is equipped with four shock-absorbing springs 13. The shock-absorbing spring 13 is composed of a buffer spring 2 and a damper 2. The buffer spring 2 is arranged on the outside of the damper 2. By arranging the buffer spring 2 and the damper 2, the bottom of the base plate 3 can be damped.

[0033] When in use: first, nine groups of rubber columns 7 in a surrounding shape are installed on the inner wall of the shell 1. When the motor body generates vibration during operation, the rubber columns 7 can initially buffer the vibrating motor body, and two groups of shock-absorbing springs 10 equidistantly distributed are used to absorb the shock on both sides of the bottom plate 3, and then two groups of shock-absorbing springs 2 13 are used to absorb the shock on the bottom of the bottom plate 3. The motor body can be double-damped, which can effectively reduce the vibration amplitude of the motor body. The noise generated by the motor body is small and will not cause adverse effects on surrounding staff.

[0034] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A noise reduction device for a DC motor, comprising a housing (1), a first mounting sleeve (2) and a second mounting sleeve (5) being mounted on both sides of the housing (1), and a bottom plate (3) being fixedly connected to the bottom of the housing (1), characterized in that: A shock absorbing seat (4) is installed below the bottom plate (3); a mounting groove (6) is provided inside the mounting sleeve 1 (2) and the mounting sleeve 2 (5); a rubber column (7) is installed inside the mounting groove (6); a mounting plate (8) is installed on the inner wall of the shock absorbing seat (4); a bolt 2 (9) is threadedly connected to the inner side of the mounting plate (8); a shock absorbing spring 1 (10) is fixedly connected to one side of the mounting plate (8); a mounting seat (11) is installed at the inner bottom of the shock absorbing seat (4); a bolt 3 (12) is threadedly connected to the inner side of the mounting seat (11); and a shock absorbing spring 2 (13) is fixedly connected to the top of the mounting seat (11).

2. The noise reduction device for a DC motor according to claim 1, characterized in that: A motor body is installed inside the housing (1), an arc-shaped plate (101) is installed on the outer wall of the housing (1), two groups of heat dissipation openings (102) are provided inside the arc-shaped plate (101), and bolts (103) are threadedly connected at the four corners of the arc-shaped plate (101).

3. The noise reduction device for a DC motor according to claim 2, characterized in that: The arc-shaped plates (101) are provided in five groups, and the five groups of arc-shaped plates (101) are arranged in a surrounding shape on the outside of the outer shell (1). The inner side wall of the outer shell (1) is provided with a groove, and the size of the groove is adapted to the size of the rubber column (7).

4. The noise reduction device for a DC motor according to claim 1, characterized in that: The rubber columns (7) are provided in nine groups, and each group of rubber columns (7) respectively penetrates the first installation sleeve (2) and is connected to the second installation sleeve (5) from right to left.

5. The noise reduction device for a DC motor according to claim 1, characterized in that: The second bolts (9) are provided in two groups, with four second bolts (9) forming one group. The second bolts (9) are symmetrically arranged at the four corners of the mounting plate (8).

6. The noise reduction device for a DC motor according to claim 1, characterized in that: The shock absorbing springs (10) are provided in two groups, each group consists of six shock absorbing springs (10), and each group of shock absorbing springs (10) is evenly distributed. The shock absorbing springs (10) are composed of a buffer spring (1) and a damper (1), and the buffer spring (1) is arranged on the outside of the damper.

7. The noise reduction device for a DC motor according to claim 1, characterized in that: The mounting seats (11) are provided in two groups, each group consists of three mounting seats (11), and are symmetrically arranged on both sides above the shock absorbing seats (4). Each set of the shock absorbing seats (4) is equipped with four shock absorbing springs (13). The shock absorbing springs (13) are composed of buffer springs (2) and dampers (2). The buffer springs (2) are arranged on the outside of the dampers (2).

Images