CN105449937B - Hall circuit board fixed rack structure - Google Patents

Abstract

The invention discloses a Hall circuit board fixing frame structure, comprising a fixing frame, a Hall circuit board is arranged on the fixing frame, the Hall circuit board is fixedly connected with the fixing frame, and the Hall A potting groove is set under the Hall circuit board, a mounting platform is arranged in the potting groove, the mounting platform is fixedly connected with the fixing frame, and a gap is set between the two ends of the Hall circuit board and the potting groove. The present invention fixes the Hall circuit board through the mounting table in the potting tank, so that there is a certain space between the Hall circuit board and the bottom of the potting tank, and the depth of the mounting table and the limit table is consistent with the thickness of the Hall circuit board. In this way, the lead-out line of the Hall circuit board will not be pressed by the fixing frame. At the same time, a gap is set between the two ends of the Hall circuit board and the potting groove, and the resin can be poured into the potting groove through the gap, so that both Ensure that the resin is filled during the potting process, and ensure the outflow of air during the potting process to avoid air bubbles in the potting process.

Description

Hall circuit board fixing frame structure

technical field

The invention relates to the field of electronic equipment, and more specifically, the invention relates to a Hall circuit board fixing frame structure.

Background technique

At present, there are basically two ways to fix the Hall circuit board of a brushless DC motor. One is that the Hall circuit board is directly tied to the wire stator, but the process of binding is cumbersome and the efficiency is very low. The other way is the Hall circuit. The board is directly installed on the end cover. Although it is easy to install, one end cover is basically metal, and the insulation level cannot be guaranteed. Second, because there is an induction distance between the Hall circuit board and the rotor magnetic tile, the distance is too large, and the signal cannot be sensed. , the distance is too short, it is very troublesome for the lead wires of the motor and the Hall circuit board to pass through the PG hole of the machine base, and it is easy to break the lead wires during the assembly process.

Contents of the invention

The purpose of the present invention is to solve the existing above-mentioned problems and provide a Hall circuit board fixing frame structure.

In order to achieve the above object, the technical solution of the present invention is a Hall circuit board fixing frame structure, including a fixing frame, a Hall circuit board is arranged on the fixing frame, and the Hall circuit board is fixedly connected to the fixing frame, A potting groove is set under the Hall circuit board on the fixing frame, a mounting table is arranged in the potting groove, the mounting table is fixedly connected with the fixing frame, and the two ends of the Hall circuit board are connected to the potting Set gaps between seals. Fix the Hall circuit board through the mounting table in the potting tank, so that there is a certain space between the Hall circuit board and the bottom of the potting tank, and the depth of the mounting table and the limit table is consistent with the thickness of the Hall circuit board. The lead-out line of the Hall circuit board will not be pressed by the fixing frame. At the same time, a gap is set between the two ends of the Hall circuit board and the potting groove, and the resin can be poured into the potting groove through the gap, so that it can be ensured. During the potting process, the resin is filled, and the air can be guaranteed to flow out during the potting process, so as to avoid the existence of air bubbles in the potting process.

Optionally, a limiting platform is set in the potting tank, and the limiting platform is fixedly connected with the fixing frame. The limit table in the potting tank can not only play the role of limit, prevent the Hall circuit board from moving, but also play the role of supporting the Hall circuit board.

Optionally, the potting tank includes an inflow zone, a flow zone and a termination zone, and the inflow zone and the termination zone are arranged at both ends of the potting tank. When potting the resin, the resin is poured from the inflow area, flows and fills through the flow area, and finally terminates in the termination area, indicating that the resin is filled and the potting is stopped.

Optionally, fixed arms are arranged at both ends of the fixed frame, and the fixed arms are fixedly connected with the fixed frame. The fixed arm is used for connecting the fixed frame with other parts, so as to facilitate the connection and disassembly of the fixed frame.

Optionally, a bearing avoiding groove is provided on the fixed frame, and the bearing avoiding groove is arranged on the inner arc side. Bearing avoidance slots are used to avoid bearings on components connected to the mount.

Optionally, rotor avoiding slots are provided on the fixed frame, and the rotor avoiding slots are provided on the inner arc side. The rotor avoiding slot is used to avoid the rotor shaft to prevent friction between the rotor shaft and the fixed frame.

Optionally, an end cover is arranged on the fixing frame, and the end cover is fixedly connected with the fixing frame. The end caps are used to attach the mounts.

Optionally, a bearing is arranged inside the end cover, and the bearing is fixedly connected with the end cover. Bearings in the endshield are used to connect the rotor shaft to the endshield.

The present invention has the following beneficial effects: the Hall circuit board is fixed by the mounting table in the potting tank, so that there is a certain space between the Hall circuit board and the bottom of the potting tank, and the depth of the mounting table and the limit table is the same as that of the Hall circuit board. The thickness of the board is consistent, so that the lead-out line of the Hall circuit board will not be pressed by the fixing frame, and at the same time, a gap is set between the two ends of the Hall circuit board and the potting tank, and the resin can be poured into the potting tank through the gap In this way, it can not only ensure that the resin is filled during the potting process, but also ensure the outflow of air during the potting process, so as to avoid the existence of air bubbles in the potting process.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention;

Fig. 2 is a kind of structural schematic diagram of fixed frame;

Fig. 3 is another structural schematic diagram of the fixing frame.

1. Fixed frame; 2. Hall circuit board; 3. Gap; 4. End cover; 5. Bearing; 6. Potting groove; 7. Fixed arm; 8. Bearing avoiding groove; 9. Rotor avoiding groove; 11. Installation platform; 12. Limiting platform; 13. Inflow area; 14. Flow area; 15. Termination area.

Detailed ways

Below in conjunction with specific embodiment, and in conjunction with accompanying drawing, the technical scheme of the present invention is further described:

Embodiment: Hall circuit board fixing frame structure (see accompanying drawings 1, 2, 3), including a fixing frame 1, a Hall circuit board 2 is arranged on the fixing frame 1, and the Hall circuit board 2 and the fixed The frame 1 is fixedly connected, and the potting groove 6 is set under the hall circuit board 2 on the fixed frame 1, and the installation platform 11 is arranged in the described potting groove 6, and the described installation platform 11 is fixedly connected with the fixed frame 1, A gap 3 is provided between the two ends of the Hall circuit board 2 and the potting tank 6, and a limiter 12 is arranged in the potting tank 6, and the limiter 12 is fixedly connected to the fixed frame 1, The potting groove 6 includes an inflow zone 13, a flow zone 14 and a termination zone 15, the inflow zone 13 and the termination zone 15 are arranged at both ends of the potting groove 6, and the two ends of the fixing frame 1 are arranged Fixed arm 7, described fixed arm 7 is fixedly connected with fixed frame 1, and described fixed frame 1 is provided with bearing avoiding groove 8, and described bearing avoiding groove 8 is arranged on the inner arc side, and described fixing The rotor avoiding groove 9 is arranged on the frame 1, and the rotor avoiding groove 9 is arranged on the inner arc side, and the end cover 4 is arranged on the fixed frame 1, and the end cover 4 is fixedly connected with the fixed frame 1, A bearing 5 is arranged inside the end cover 4 , and the bearing 5 is fixedly connected with the end cover 4 .

When in use, fix the Hall circuit board through the mounting table in the potting tank, so that there is a certain space between the Hall circuit board and the bottom of the potting tank, and the depth of the mounting table and the limit table is consistent with the thickness of the Hall circuit board , so that the lead-out line of the Hall circuit board will not be pressed by the fixing frame, and at the same time, a gap is set between the two ends of the Hall circuit board and the potting tank, and the resin can be poured into the potting tank through the gap, so that both It can ensure that the resin is filled during the potting process, and it can also ensure the outflow of air during the potting process, so as to avoid the existence of air bubbles in the potting process. The movement of the Hall circuit board can also play the role of supporting the Hall circuit board. When potting the resin, the resin is poured from the inflow area, flows and fills through the flow area, and finally terminates in the termination area, indicating that the resin is filled and the potting is stopped. , the fixed arm is used to connect the fixed frame with other parts, which is convenient for the connection and disassembly of the fixed frame, the bearing avoidance groove is used to avoid the bearing on the parts connected with the fixed frame, and the rotor avoidance groove is used to avoid the rotor shaft , to prevent friction between the rotor shaft and the fixed frame, the end cover is used to connect the fixed frame, and the bearing in the end cover is used to connect the rotor shaft and the end cover.

The specific embodiments above are used to explain the present invention, rather than to limit the present invention. Within the spirit of the present invention and the protection scope of the claims, any modification and change made to the present invention will fall into the protection scope of the present invention.

Claims (8)

1. a kind of Hall circuit board fixed rack structure, it is characterized in that, including fixed mount, Hall circuit is set on described fixed mount Plate, described Hall circuit board are fixedly connected with fixed mount, set embedding groove, institute on described fixed mount below Hall circuit board Erecting bed is set in the embedding groove stated, described erecting bed is fixedly connected with fixed mount, the both ends of described Hall circuit board and Gap is set between embedding groove, in use, Hall circuit board is fixed by the erecting bed in embedding groove, make Hall circuit board with Certain space, and the consistency of thickness of the depth and Hall circuit board of erecting bed and limiting stand be present in embedding trench bottom.

2. Hall circuit board fixed rack structure according to claim 1, it is characterized in that, set in described embedding groove spacing Platform, described limiting stand are fixedly connected with fixed mount.

3. Hall circuit board fixed rack structure according to claim 1, it is characterized in that, include flowing into described embedding groove Area, trickling area and terminator, described inflow area and terminator are arranged on both ends in embedding groove.

4. Hall circuit board fixed rack structure according to claim 1, it is characterized in that, described fixed mount both ends set solid Fixed arm, described fixed arm are fixedly connected with fixed mount.

5. Hall circuit board fixed rack structure according to claim 1, it is characterized in that, bearing is set on described fixed mount Groove is avoided, described bearing avoids groove and is arranged on Inner arc side.

6. Hall circuit board fixed rack structure according to claim 1, it is characterized in that, rotor is set on described fixed mount Groove is avoided, described rotor avoids groove and is arranged on Inner arc side.

7. according to the Hall circuit board fixed rack structure described in claim any one of 1-6, it is characterized in that, on described fixed mount End cap is set, and described end cap is fixedly connected with fixed mount.

8. Hall circuit board fixed rack structure according to claim 7, it is characterized in that, bearing is set in described end cap, Described bearing is fixedly connected with end cap.