Current bearing structure for direct current motor control

Abstract

The utility model discloses a current bearing structure for controlling a direct current motor, which comprises a bearing part in an annular structure; the overflowing device comprises a first overflowing assembly, a second overflowing assembly and a third overflowing assembly, and the first overflowing assembly, the second overflowing assembly and the third overflowing assembly are arranged on the bearing part; wherein the first overflowing assembly is of a U-shaped structure and is located in the middle of the bearing part, and the second overflowing assembly and the third overflowing assembly are both located in the first overflowing assembly. The bearing part is designed to be of the annular structure, so that the bearing part can be installed in the direct-current motor, the three overcurrent assemblies are installed on the top of the bearing part, the conductivity of the bearing part is enhanced, the current carrying capacity of the bearing plate is improved, and the operation requirement for passing of excessive current of the bearing part is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of direct current motor control, and in particular relates to a current carrying structure for direct current motor control. Background Art

[0002] PCB board, also known as printed circuit board, is an important electronic component used to support electronic components. Among them, the copper strips on the PCB board are used to pass the current. In the prior art, in order to meet the passage of large currents, the copper strips on the PCB board are usually thickened and the copper strip line diameters are widened to achieve the PCB board can meet the needs of large current passage.

[0003] However, this solution of thickening the copper strip and widening the copper strip line diameter is seriously restricted by the internal structural space of the product. For example, in terms of DC motor control, the internal space of the DC motor is small, and the PCB board of the DC motor calibrated at the factory does not have any current-carrying components. This results in the PCB board being unable to carry the large current during the operation of the DC motor. If you are not careful, the board will burn out. If you arrange vertical long copper strips on the factory-calibrated PCB board in the conventional way, the size of the PCB board needs to be increased, and the PCB board can only be exposed to the outside of the DC motor for use, which can easily cause safety hazards. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and provides a current carrying structure for controlling a DC motor.

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

[0006] A current carrying structure for controlling a DC motor, comprising:

[0007] The bearing member is a ring-shaped structure;

[0008] The over-current device comprises a first over-current component, a second over-current component and a third over-current component, wherein the first over-current component, the second over-current component and the third over-current component are arranged on the bearing member;

[0009] The first flow component is a U-shaped structure and is located in the middle of the bearing component. The second flow component and the third flow component are both located inside the first flow component.

[0010] Furthermore, the first flow component includes a first long flow bar and a first short flow bar, the first long flow bar and the first short flow bar are an integral structure, arranged on the top of the carrier, and form a flow area between each other, and the second flow component and the third flow component are located in the flow area.

[0011] Furthermore, the cross section of the flow area is U-shaped.

[0012] Further, the first long current bar and the first short current bar are both L-shaped structures, and the ends of the first long current bar and the first short current bar are respectively located at two ends of the top of the bearing member.

[0013] Furthermore, the second current flow component includes a second short current flow bar and a second long current flow bar, and the second short current flow bar and the second long current flow bar are arranged in parallel.

[0014] Furthermore, the cross sections of the second short current-carrying bar and the second long current-carrying bar are both rectangular.

[0015] Furthermore, the third current-carrying component includes a third current-carrying bar A and a third current-carrying bar B, and the third current-carrying bar A and the third current-carrying bar B have the same structure.

[0016] Furthermore, the length of one end of the first long current strip is 51.35 mm, and the length of the other end is 35.8 mm;

[0017] The length of the first short current strip is 17.1 mm.

[0018] Furthermore, the lengths of the second short current-carrying strip and the second long current-carrying strip are 18 mm and 21 mm respectively, and the heights of both are 3 mm.

[0019] Furthermore, the carrier is a PCB board.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The carrier is designed as a ring structure so that it can be installed inside the DC motor. The three overcurrent components installed on the top of the carrier enhance the conductivity of the carrier, increase the current carrying capacity of the carrier plate, and meet the operating requirements of the carrier for excessive current passing through. At the same time, one of the overcurrent components is set as a U-shaped structure, and the other two groups of overcurrent components are arranged in the overcurrent component of the U-shaped structure. By optimizing the structure of one of the overcurrent components, the layout space on the carrier is saved, which not only increases the space utilization of the carrier, but also meets the requirements of assembling the carrier inside the DC motor.

[0022] 2. The arrangement of the three overcurrent components can match the pad shape of the specific driving circuit of the carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional schematic diagram of a current carrying structure for controlling a DC motor provided by the utility model;

[0025] Figure 2 A schematic diagram of a first overcurrent component in a current carrying structure for controlling a DC motor provided by the utility model;

[0026] Figure 3 A schematic diagram of the second short overcurrent bar in the current carrying structure for DC motor control provided by the utility model;

[0027] Figure 4 A schematic diagram of the third short current-carrying bar A in the current-carrying structure for controlling a DC motor provided by the utility model;

[0028] Figure 5 A schematic diagram of the current carrying structure for DC motor control and the DC motor assembly provided by the utility model;

[0029] Among them: 1. load-bearing member; 2. first flow-through component; 201. first long flow-through bar; 202. first short flow-through bar; 3. second flow-through component; 301. second short flow-through bar; 302. second long flow-through bar; 4. third flow-through component; 401. third flow-through bar A; 402. third flow-through bar B; 5. DC motor. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme 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. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, it is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the embodiments of the present utility model, 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 utility model can be understood according to specific circumstances.

[0036] like Figure 1As shown, the present embodiment provides a current-carrying structure for controlling a DC motor, comprising: a carrier 1, the carrier 1 being an annular structure, capable of adapting to the installation space of the DC motor 5, ensuring that the current-carrying structure can be installed inside the DC motor 5 and protected by the housing of the DC motor 5; an overcurrent device, for ensuring that a large current passes smoothly, specifically comprising a first overcurrent component 2, a second overcurrent component 3 and a third overcurrent component 4; wherein the first overcurrent component 2, the second overcurrent component 3 and the third overcurrent component 4 are arranged on the carrier 1, and the first overcurrent component 2 is a U-shaped structure, located in the middle of the carrier 1, and the second overcurrent component 3 and the third overcurrent component 4 are both located in the first overcurrent component 2. The carrier 1 is designed as a ring structure so that it can be installed inside the DC motor, and the three overcurrent components installed on the top of the carrier 1 enhance the conductivity of the carrier 1, increase the current carrying capacity of the carrier plate 1, and meet the operating requirements of the carrier 1 for passing excessive current; at the same time, the first overcurrent component 2 is set as a U-shaped structure, and the second overcurrent component 3 and the third overcurrent component 4 are both arranged in the first overcurrent component 2 of the U-shaped structure. By optimizing the structure of the first overcurrent component 2, the arrangement space on the carrier 1 is saved, which not only increases the space utilization of the carrier 1, but also meets the requirements of assembling the carrier 1 inside the DC motor.

[0037] like Figure 1 and Figure 2As shown, the first flow component 2 includes a first long flow bar 201 and a first short flow bar 202, the first long flow bar 201 and the first short flow bar 202 are an integral structure, the length of one end of the first long flow bar 201 is 51.35 mm, and the length of the other end is 35.8 mm; the length of the first short flow bar 202 is 17.1 mm, the shorter end of the first long flow bar 201 is connected to the longer end of the first short flow bar 202, and is arranged on the top of the carrier 1, and forms a flow area between each other, the second flow component 3 and the third flow component 4 are located in the flow area; the cross-section of the flow area is U-shaped, the first long flow bar 201 and the first short flow bar 202 are both L-shaped structures, and the ends of the first long flow bar 201 and the first short flow bar 202 are respectively located at the two ends of the top of the carrier 1. The second flow component 3 includes a second short flow bar 301 and a second long flow bar 302, and the second short flow bar 301 and the second long flow bar 302 are arranged in parallel, wherein the second short flow bar 301 is located on the side of the shorter end of the first long flow bar 201 facing the center of the carrier 1, and the second short flow bar 301 is located on the side of the shorter end of the first short flow bar 202 facing the center of the carrier 1, and the distance between the second short flow bar 301 and the longer side of the first short flow bar 202 is greater than the distance between the second long flow bar 302 and the shorter side of the first long flow bar 201. Finally, it is worth mentioning that the cross-sections of the second short flow bar 301 and the second long flow bar 302 are both rectangular, and the lengths of the second short flow bar 301 and the second long flow bar 302 are 18 mm and 21 mm respectively, and the heights are both 3 mm.

[0038] In this embodiment, if Figure 1 and Figure 4 As shown, the third flow component 4 includes a third flow bar A401 and a third flow bar B402. The third flow bar A401 and the third flow bar B402 have the same structure, and the third flow bar A401 includes two horizontal sections 4011 and an inclined section 4012. The two horizontal sections 4011 are respectively fixed at both ends of the inclined section 4012. The third flow bar A401 and the third flow bar B402 are both arranged on the side close to the longer length of the first long flow bar 201.

[0039] In this embodiment, if Figure 5 As shown, the carrier 1 is preferably a PCB board, and each overcurrent strip is a copper strip for carrying the passage of large current. In specific operation, solder paste is first printed on the PCB board, each overcurrent copper strip is electroplated with bright tin, and then reflow soldering is performed on the soldering pads at the corresponding positions of the PCB board. Finally, the PCB board after soldering is installed on the DC motor 5 by screws to carry the passage of large current.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A current carrying structure for DC motor control, characterized in that: include: The bearing member (1) is an annular structure; A flow device, comprising a first flow component (2), a second flow component (3) and a third flow component (4), wherein the first flow component (2), the second flow component (3) and the third flow component (4) are arranged on the carrier (1); The first flow component (2) is a U-shaped structure and is located in the middle of the carrier (1); the second flow component (3) and the third flow component (4) are both located inside the first flow component (2).

2. The current carrying structure according to claim 1, characterized in that: The first flow component (2) comprises a first long flow bar (201) and a first short flow bar (202); the first long flow bar (201) and the first short flow bar (202) are an integral structure, arranged on the top of the carrier (1), and mutually forming a flow area; the second flow component (3) and the third flow component (4) are located within the flow area.

3. The current carrying structure according to claim 2, characterized in that: The cross section of the flow area is U-shaped.

4. The current carrying structure according to claim 2, characterized in that: The first long current strip (201) and the first short current strip (202) are both L-shaped structures, and the ends of the first long current strip (201) and the first short current strip (202) are respectively located at two ends of the top of the bearing component (1).

5. The current carrying structure according to claim 2, characterized in that: The second current flow component (3) comprises a second short current flow bar (301) and a second long current flow bar (302), and the second short current flow bar (301) and the second long current flow bar (302) are arranged in parallel.

6. The current carrying structure according to claim 5, characterized in that: The cross sections of the second short current-carrying strip (301) and the second long current-carrying strip (302) are both rectangular.

7. The current carrying structure according to claim 2, characterized in that: The third current-carrying component (4) comprises a third current-carrying bar A (401) and a third current-carrying bar B (402), and the third current-carrying bar A (401) and the third current-carrying bar B (402) have the same structure.

8. The current carrying structure according to claim 2, characterized in that: The length of one end of the first long current-carrying strip (201) is 51.35 mm, and the length of the other end is 35.8 mm; The length of the first short current-transfer strip (202) is 17.1 mm.

9. The current carrying structure according to claim 5, characterized in that: The lengths of the second short current-carrying strip (301) and the second long current-carrying strip (302) are 18 mm and 21 mm respectively, and the heights of both are 3 mm.

10. The current carrying structure according to claim 1, characterized in that: The carrier (1) is a PCB board.

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