Motor capacitor box

Abstract

The utility model discloses a motor capacitor box, which comprises a motor casing and a capacitor box detachably connected to one side of the motor casing, and is characterized in that a flange is arranged on the peripheral side of the motor casing, a clamping groove is concavely formed in one side of the flange, and a notch matched with the flange is formed in the capacitor box. A clamping block capable of being matched with the clamping groove is rotationally arranged on one side of the capacitor box, and a limiting component capable of driving the clamping block to be kept embedded in the clamping groove is arranged on the capacitor box. The capacitor box is embedded and matched with the flange of the motor shell through the notch, so that after the capacitor box and the motor shell are installed in a pre-positioning mode, the clamping block located on the capacitor box is embedded in the clamping groove of the flange in a rotating fit mode, the clamping block is driven to be kept embedded in the clamping groove through the limiting component, and installation connection between the capacitor box and the motor shell is achieved. Therefore, the defect that the capacitor box needs to be installed by locking a plurality of screws is effectively avoided.

Description

Technical Field

[0001] The utility model particularly relates to a motor capacitor box. Background Art

[0002] The existing motor includes a stator assembly, a rotor assembly, a casing and a capacitor box. The rotor assembly includes a rotating shaft, which is mounted on the rotor assembly. The casing is provided with a first cavity for mounting the stator assembly and the rotor assembly. The capacitor box is fastened to the outer surface of the casing by screws. Since the casing shell is relatively thin, the screw fastening depth is limited, resulting in a loose connection between the capacitor box and the casing. In addition, a large number of screws are used, and the production cost is high. Utility Model Content

[0003] In view of the defects of the above-mentioned prior art, the technical problem to be solved by the present invention is: to provide a motor capacitor box.

[0004] A motor capacitor box comprises a motor casing and a capacitor box detachably connected to one side of the motor casing, wherein the outer peripheral side of the motor casing is provided with a flange, one side of the flange is recessed with a slot, the capacitor box is provided with a notch that cooperates with the flange, a clamping block that can cooperate with the slot is rotatably provided on one side of the capacitor box, and the capacitor box is provided with a limiting component that can drive the clamping block to remain embedded in the slot.

[0005] In one embodiment, the limiting member includes a pressure rod that can be movably arranged on the capacitor box up and down, one end of the pressure rod movably abuts against the card block, and the pressure rod abuts to drive the card block to rotate relative to the capacitor box and remain embedded in the card slot. A through hole is provided on the pressure rod, and a fastening screw threadedly connected to the capacitor box is provided in the through hole, and the pressure rod is driven to maintain an abutment state with the card block through the fastening screw.

[0006] In one embodiment, when the capacitor box is matched with the flange through the notch, the capacitor box and the flange are arranged in a cross-shaped pattern and four corner spaces are formed at the four corners therebetween. There are four card blocks, and the card blocks are distributed in the four corner spaces one by one. Both ends of the pressure rod have cross bars, and both ends of the cross bars respectively contact the card blocks one by one with the movement of the pressure rod, causing the card blocks to rotate and engage with the card slots.

[0007] In one embodiment, when the clamping block is fitted into the clamping slot, the clamping block covers the gap between the notch and the flange.

[0008] In one embodiment, the motor housing includes a front end cover and a rear end cover, and the flange has two flanges that are respectively arranged one-to-one at one end adjacent to the front end cover and the rear end cover to form a flange structure; wherein, the flange includes a first flange and a second flange that are sequentially connected to the motor housing, and the slot is formed between the first flange and the second flange.

[0009] In one embodiment, the capacitor box has a lower opening for placing an installation cavity for accommodating electrical components, the notches are symmetrically arranged on both sides of the capacitor box and are connected to the installation cavity, the third flanges are symmetrically arranged on the left and right sides of the bottom of the capacitor box, and a through hole for accommodating a card block is penetrated on the first flange.

[0010] In one embodiment, the upper end of the capacitor box has a groove, the pressure rod is U-shaped and is movably fitted on the capacitor box and movably accommodated in the groove.

[0011] In one embodiment, a positioning hole is provided on the third flange, and a positioning column that can cooperate with the positioning hole is provided on the motor housing.

[0012] In summary, the present invention has the following beneficial effects compared to the prior art:

[0013] The capacitor box of the present invention is fitted into the flange of the motor casing through its notch to achieve pre-positioned installation of the capacitor box and the motor casing. The clamping block on the capacitor box is rotated and fitted into the clamping groove of the flange, and the clamping block is driven to remain embedded in the clamping groove through a limiting component to achieve the installation connection between the capacitor box and the motor casing, thereby effectively avoiding the disadvantage of needing to lock multiple screws to install the capacitor box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a motor capacitor box in one embodiment of the present utility model;

[0015] Figure 2 This is one of the exploded views of a motor capacitor box in one embodiment of the present utility model;

[0016] Figure 3 This is the second exploded view of a motor capacitor box in one embodiment of the present utility model;

[0017] Figure 4 This is the third exploded view of a motor capacitor box in one embodiment of the present utility model. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0019] like Figures 1 to 4The embodiment of the utility model shown preferably provides a motor capacitor box, including a motor casing 1 and a capacitor box 2 detachably connected to one side of the motor casing 1, the outer peripheral side of the motor casing 1 is provided with a flange 3, and a card slot 4 is recessed on one side of the flange 3, and a notch 5 is provided on the capacitor box 2 to cooperate with the flange 3, and a card block 6 that can cooperate with the card slot 4 is rotatably provided on one side of the capacitor box 2, and a limiting component 7 that can drive the card block 6 to remain embedded in the card slot 4 is provided on the capacitor box 2.

[0020] Specifically, the capacitor box is engaged with the flange of the motor casing through its notch to achieve pre-positioning installation of the capacitor box and the motor casing. The clamping block on the capacitor box is rotated and engaged to be embedded in the clamping groove of the flange, and the clamping block is driven to remain embedded in the clamping groove through the limiting component to achieve the installation connection between the capacitor box and the motor casing, thereby effectively avoiding the disadvantage of needing to lock multiple screws to install the capacitor box.

[0021] Furthermore, the limiting member 7 includes a pressure rod 71 that can be movably arranged on the capacitor box 2 up and down, and one end of the pressure rod 71 is movably in contact with the block 6. The pressure rod 71 is in contact to drive the block 6 to rotate relative to the capacitor box 2 and remain embedded in the slot 4. A through hole (not marked in the figure) is provided on the pressure rod 71, and a fastening screw 73 threadedly connected to the capacitor box 2 is provided in the through hole (not marked in the figure). The pressure rod 71 is driven to maintain an abutment state with the block 6 by fastening the screw 73.

[0022] Specifically, by screwing and locking the fastening screw, the fastening screw moves relative to the capacitor box thread and presses on the pressure rod and clamps the pressure rod. At this time, the pressure rod is pressed and moved by the fastening screw and abuts against the card block, causing the card block to rotate relative to the capacitor box and be embedded in the card slot, thereby realizing the connection and locking between the capacitor box and the motor housing.

[0023] Furthermore, when the capacitor box 2 is mated with the flange 3 through the notch 5, the capacitor box 2 and the flange 3 are arranged in a cross-jointed arrangement and four corner spaces are formed at the four corners therebetween. The four clamping blocks 6 are provided and distributed one-to-one in the four corner spaces. The pressure rod 71 has a cross bar 74 at both ends, and the two ends of the cross bar 74 respectively contact the clamping blocks 6 in a one-to-one correspondence as the pressure rod 71 moves, causing the clamping blocks 6 to rotate and engage with the slots 4. Specifically, by cooperating with the same fastening screw and the pressure rod, the four clamping blocks can be rotated synchronously and engaged with the slots of the flange, thereby effectively enhancing the firmness of the connection between the motor housing and the capacitor box.

[0024] Furthermore, when the clamping block 6 is fitted into the clamping slot 4, the clamping block 6 covers the gap between the notch 5 and the flange 3, thereby effectively enhancing the sealing performance.

[0025] Furthermore, the motor housing 1 includes a front cover 11 and a rear cover 12, and the flange 3 has two flanges 3 that are respectively arranged at one end adjacent to the front cover 11 and the rear cover 12 to form a flange structure; wherein the flange 3 includes a first flange 31 and a second flange 32 that are sequentially connected to the motor housing 1, and the slot 4 is formed between the first flange 31 and the second flange 32. This facilitates the integrated processing of the front cover and the flange thereon, and the rear cover and the flange thereon.

[0026] Furthermore, the capacitor box 2 has a lower opening for placing an installation cavity 21 for accommodating electrical components, the notches 5 are symmetrically arranged on both sides of the capacitor box 2 and connected to the installation cavity 21, and the third flanges 22 are symmetrically arranged on the left and right sides of the bottom of the capacitor box 2, and the first flange 31 is penetrated by a through hole 24 for accommodating the card block 6.

[0027] Furthermore, the upper end of the capacitor box 2 has a groove 23, and the pressure rod 71 is U-shaped and is movably mounted on the capacitor box 2 and movably accommodated in the groove 23. The pressure rod can be movably accommodated in the groove, effectively avoiding the pressure rod from bulging outward from one side of the capacitor box and causing interference.

[0028] Furthermore, a positioning hole 91 is provided on the third flange 22, and a positioning column 92 is provided on the motor housing 1 to match the positioning hole 91, thereby achieving a positioning and mounting connection between the capacitor box and the motor housing.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor capacitor box, comprising a motor housing (1) and a capacitor box (2) detachably connected to one side of the motor housing (1), characterized in that: The motor housing (1) is provided with a flange (3) on the outer peripheral side, a slot (4) is recessed in one side of the flange (3), a notch (5) is provided on the capacitor box (2) and matches the flange (3), a block (6) that can match the slot (4) is rotatably provided on one side of the capacitor box (2), and a limiting member (7) that can drive the block (6) to remain embedded in the slot (4) is provided on the capacitor box (2).

2. The motor capacitor box according to claim 1, characterized in that: The limiting member (7) includes a pressure rod (71) that is movable up and down and is arranged on the capacitor box (2). One end of the pressure rod (71) is in contact with the clamping block (6). The clamping block (6) is driven to rotate relative to the capacitor box (2) and remain embedded in the clamping slot (4) through the contact of the pressure rod (71). A through hole is provided on the pressure rod (71). A fastening screw (73) threadedly connected to the capacitor box (2) is provided in the through hole. The pressure rod (71) is driven to maintain a contact state with the clamping block (6) through the fastening screw (73).

3. The motor capacitor box according to claim 2, characterized in that: When the capacitor box (2) is matched with the flange (3) through the notch (5), the capacitor box (2) and the flange (3) are arranged in a cross-jointed manner and four corner spaces are formed at the four corners between the two. The four clamping blocks (6) are respectively provided with cross bars (74) at both ends of the pressure rod (71). The two ends of the cross bars (74) respectively contact the clamping blocks (6) in a one-to-one manner as the pressure rod (71) moves, causing the clamping blocks (6) to rotate and engage with the clamping slots (4).

4. A motor capacitor box according to any one of claims 1 to 3, characterized in that: When the clamping block (6) is fitted into the clamping slot (4), the clamping block (6) covers the gap between the notch (5) and the flange (3).

5. The motor capacitor box according to claim 3, characterized in that: The motor housing (1) includes a front end cover (11) and a rear end cover (12), and the flange (3) has two flanges that are respectively arranged at one end adjacent to the front end cover (11) and the rear end cover (12) in a one-to-one correspondence to form a flange structure; wherein the flange (3) includes a first flange (31) and a second flange (32) that are sequentially connected to the motor housing (1), and the slot (4) is formed between the first flange (31) and the second flange (32).

6. The motor capacitor box according to claim 5, characterized in that: The capacitor box (2) has a lower opening capable of accommodating an installation cavity (21) for accommodating an electrical component. The notches (5) are symmetrically arranged on both sides of the capacitor box (2) and communicate with the installation cavity (21). Third flanges (22) are symmetrically arranged on the left and right sides of the bottom of the capacitor box (2). A through hole (24) capable of accommodating a card block (6) is penetrated through the first flange (31).

7. The motor capacitor box according to claim 2, characterized in that: The upper end of the capacitor box (2) has a groove (23), and the pressure rod (71) is U-shaped and is movably fitted on the capacitor box (2) and movably accommodated in the groove (23).

8. The motor capacitor box according to claim 6, characterized in that: A positioning hole (91) is provided on the third flange (22), and a positioning column (92) capable of matching with the positioning hole (91) is provided on the motor housing (1).

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