Terminal connection plastic shell structure

Abstract

The utility model relates to the technical field of motors, in particular to a terminal connection plastic shell structure, which comprises a motor shell, a first circuit board and a second circuit board are arranged in the motor shell, a first connection terminal is arranged at the upper end of the first circuit board, and a second connection terminal is arranged on the second circuit board. An insulating plastic shell is arranged in the motor shell, an inserting groove for accommodating the first connecting terminal and the second connecting terminal is formed in the insulating plastic shell, the first connecting terminal is located in the inserting groove, and the second connecting terminal is detachably connected with the inserting groove. The device can be adjusted and designed according to the number and arrangement positions of actual terminals, an insulating plastic shell is additionally arranged, meanwhile, male terminal insertion holes are formed in the insulating plastic shell, guide features are added to the holes, when the male terminals are inserted into the female terminals, effective connection can be achieved even if blind insertion is conducted due to the guide structures, and the service life of the male terminals is prolonged. And meanwhile, the insulating plastic shell plays a good role in isolating and protecting surrounding parts with electrical clearance requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a plastic shell structure for terminal connection. Background Art

[0002] The internal circuit board of a motor is an electronic component used to control the operation of the motor, and is usually composed of a control unit, a drive circuit, a protection circuit, a sensor interface and a power management unit.

[0003] Currently, when the motor is assembled, the male and female terminals for circuit board-to-circuit board connection are usually connected to each other, and there is no guiding and protecting structure during installation and insertion. Especially when the two boards are respectively installed on two end covers and the overall assembly requires blind insertion connection, the terminals are likely to be misaligned during installation and cannot be effectively assembled together, resulting in connection failure. Therefore, we propose a plastic shell structure for terminal connection to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defect that there is no guiding and protecting structure when the male and female terminals for circuit board-to-circuit board connection are connected to each other in the prior art, and to propose a plastic shell structure for terminal connection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A plastic shell structure for terminal connection, including a motor housing. Inside the motor housing, a first circuit board and a second circuit board are provided. A first connection terminal is arranged at the upper end of the first circuit board, and a second connection terminal is arranged on the second circuit board. An insulating plastic shell is arranged inside the motor housing. An insertion slot for accommodating the first connection terminal and the second connection terminal is formed in the insulating plastic shell. The first connection terminal is located in the insertion slot, and the second connection terminal is detachably connected to the insertion slot.

[0007] As a preferred technical scheme of the utility model, a guiding bevel is arranged at the top end of the insertion slot. The arrangement of the guiding bevel facilitates the insertion of the second connection terminal into the insertion slot, so that the second connection terminal is attached to the first connection terminal.

[0008] As a preferred technical scheme of the utility model, a counterbore is arranged on the insulating plastic shell for the installation of a locking bolt to prevent the locking bolt from protruding from the insulating plastic shell.

[0009] As a preferred technical scheme of the utility model, a boss is arranged on the inner wall of the insertion slot on the side away from the first connection terminal. After the second connection terminal is inserted, the second connection terminal is extruded by the boss to make it attached to the first connection terminal.

[0010] The beneficial effects of the utility model are:

[0011] The structure of this design can be adjusted according to the actual number and arrangement position of terminals. An insulating plastic shell is added. At the same time, insertion holes for male terminals are formed on the insulating plastic shell, and guiding features are added at the hole openings. When the male terminal is inserted into the female terminal, due to the guiding structure, the connection and installation are simple and reliable, and effective connection can be achieved even for blind insertion. At the same time, the insulating plastic shell plays a good role in isolating and protecting the parts with requirements for surrounding electrical clearances. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of a terminal connection plastic shell structure proposed by the present utility model;

[0013] Figure 2 is Figure 1 a schematic structural diagram of the position A in

[0014] Figure 3 It is a schematic structural diagram of a terminal connection plastic shell structure proposed by the present utility model in a motor housing.

[0015] In the figure: 1, motor housing; 2, insulating plastic shell; 3, first circuit board; 4, first connection terminal; 5, second circuit board; 6, second connection terminal; 7, guiding chamfer; 8, insertion slot. Specific Embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0017] Referring to Figures 1-3 , a terminal connection plastic shell structure includes a motor housing 1. Inside the motor housing 1, a first circuit board 3 and a second circuit board 5 are provided. At the upper end of the first circuit board 3, a first connection terminal 4 is provided. On the second circuit board 5, a second connection terminal 6 is provided. The first connection terminals 4 and the second connection terminals 6 on the first circuit board 3 and the second circuit board 5 are both multiple, and the mutually adjacent first connection terminals 4 and second connection terminals 6 are a group;

[0018] Among them, an insulating plastic shell 2 is provided inside the motor housing 1. A countersunk head groove is provided on the insulating plastic shell 2 for the installation of locking bolts to prevent the locking bolts from protruding from the insulating plastic shell 2. An insertion slot 8 for accommodating the first connection terminal 4 and the second connection terminal 6 is formed in the insulating plastic shell 2. The first connection terminal 4 is located in the insertion slot 8, and the second connection terminal 6 is detachably connected to the insertion slot 8. A guiding chamfer 7 is provided at the top of the insertion slot 8. The setting of the guiding chamfer 7 facilitates the insertion of the second connection terminal 6 into the insertion slot 8, so that the second connection terminal 6 fits with the first connection terminal 4.

[0019] Secondly, a boss is provided on the inner wall of the insertion slot 8 on the side away from the first connection terminal 4. After the second connection terminal 6 is inserted, the second connection terminal 6 is squeezed by the boss so as to be in fit with the first connection terminal 4.

[0020] In this embodiment: For this design structure, it can be adjusted and designed according to the actual number and arrangement positions of terminals. An insulating plastic shell 2 is added. At the same time, insertion holes for male terminals are formed on the insulating plastic shell 2, and a guiding chamfer 7 is added at the hole openings. When the male terminal is inserted into the female terminal, due to the guiding structure, the connection and installation are simple and reliable. Even blind insertion can achieve effective connection. At the same time, the insulating plastic shell 2 plays a very good role in isolating and protecting the parts with requirements for surrounding electrical clearances.

[0021] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A terminal connection plastic shell structure, comprising a motor housing (1), wherein a first circuit board (3) and a second circuit board (5) are arranged inside the motor housing (1), characterized in that: A first connecting terminal (4) is arranged at the upper end of the first circuit board (3), a second connecting terminal (6) is arranged on the second circuit board (5), an insulating plastic shell (2) is arranged inside the motor housing (1), an insertion slot (8) for accommodating the first connecting terminal (4) and the second connecting terminal (6) is provided in the insulating plastic shell (2), the first connecting terminal (4) is located in the insertion slot (8), and the second connecting terminal (6) is detachably connected to the insertion slot (8).

2. A terminal connection plastic shell structure according to claim 1, characterized in that: The top end of the insertion groove (8) is provided with a guiding bevel (7).

3. A terminal connection plastic shell structure according to claim 1, characterized in that: The insulating plastic shell (2) is provided with a countersunk groove, and the countersunk groove is used for installing a locking bolt.

4. The terminal connection plastic shell structure according to claim 1, characterized in that: A boss is provided on the inner wall of the insertion slot (8) at a side away from the first connecting terminal (4).

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