Glove box carbon brush holder assembly

Abstract

The utility model relates to the technical field of carbon brush holders, and discloses a glove box carbon brush holder assembly, which comprises a glove box carbon brush holder, a carbon brush holder top cover mounted at the top of the glove box carbon brush holder, and a Hall sensor main body erected in the carbon brush holder top cover, the Hall sensor body is sleeved with the sensor kit, a kit inner groove is formed in the surface of the sensor kit, a plurality of sets of heat dissipation transverse grooves are transversely formed in a cavity of the kit inner groove, and the two ends of each heat dissipation transverse groove extend to an opening of the kit inner groove and are communicated with heat dissipation positioning insertion grooves; the heat dissipation flitch is attached to the surface of the Hall sensor body, and the surface of the heat dissipation flitch is connected with an assembly plate connected with the heat dissipation positioning slot. According to the Hall sensor, the external member inner groove is formed in the sensor external member, so that the Hall sensor main body can be perfectly embedded into the inner side of the sensor external member, the Hall sensor main body can be exposed at the external member inner groove opening and the sensor clamping groove opening, the front end of the Hall sensor main body is exposed, and heat dissipation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon brush holders, in particular to a glove box carbon brush holder assembly. Background Art

[0002] A glove box is a laboratory device that fills a box with high-purity inert gas and circulates and filters out the active substances in it. The function of the carbon brush holder is to apply pressure to the carbon brushes that are in sliding contact with the commutator or slip ring surface through a spring, so that they can stably conduct current between the fixed body and the rotating body. For the motor, the brush holder and carbon brushes are both very important components. The carbon brush holder has two sets of Hall effect sensors built in. The main function of the Hall effect sensor is to identify the phase position information of the motor winding and convert it into an electrical signal. The driver obtains the rotor position information by reading the output level signal of the Hall element. The logic switch completes the correct commutation according to the rotor position information of the motor, and supplies current to the corresponding winding of the motor, forming an air gap rotating magnetic field to keep the motor running.

[0003] The two sets of Hall sensors must maintain strong stability during use. The Hall sensors on the carbon brush holder generally have strong wrapping and poor heat dissipation. As the use time accumulates, heat accumulation will affect the detection accuracy and service life of the sensor. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a glove box carbon brush holder assembly, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions:

[0006] It includes: a glove box carbon brush holder, a carbon brush holder top cover installed on the top of the glove box carbon brush holder, and a Hall sensor body mounted in the carbon brush holder top cover;

[0007] Also includes:

[0008] The sensor kit is sleeved on the outside of the Hall sensor body. The surface of the sensor kit is provided with a kit inner groove. A plurality of heat dissipation transverse grooves are transversely provided in the cavity of the kit inner groove. Both ends of the heat dissipation transverse grooves extend to the opening of the kit inner groove and are connected to the heat dissipation positioning slots.

[0009] The heat dissipation plate is attached to the surface of the Hall sensor body, and the surface of the heat dissipation plate is connected to an assembly plate connected to the heat dissipation positioning slot.

[0010] Furthermore, the groove shape of the inner groove of the kit is adapted to the outer shape of the Hall sensor body, and the inner groove of the kit passes through the front end of the sensor kit.

[0011] Furthermore, a functional jack communicating with the inner groove of the sensor kit is provided in the cavity of the sensor kit.

[0012] Furthermore, multiple groups of heat dissipation transverse grooves are arranged longitudinally in the cavity of the inner groove of the kit, and heat dissipation longitudinal grooves are connected and communicated between the multiple groups of heat dissipation transverse grooves.

[0013] Furthermore, the heat dissipation positioning slot is recessed into the surface of the sensor kit, and corresponding screw holes are provided at the bottom of the heat dissipation positioning slot and on the surface of the assembly plate.

[0014] Furthermore, two sensor card slots allowing the sensor kit to be inserted are provided at the top of the glove box carbon brush holder, and the two sensor card slots form a 90° angle with the center point of the glove box carbon brush holder.

[0015] Furthermore, a heat dissipation plate is fixed to the outer ring of the surface of the heat dissipation sticker plate, and a heat dissipation inner strip plate is fixedly provided at the center of the upper end of the heat dissipation sticker plate.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] In this application, by providing an inner groove in the sensor kit, the Hall sensor main body can be perfectly embedded inside the sensor kit. After the sensor kit is inserted into the sensor card slot, the Hall sensor main body will be exposed at the opening of the inner groove of the kit and the opening of the sensor card slot, making the front end of the Hall sensor main body exposed, which is easy for heat dissipation. At the same time, multiple groups of heat dissipation transverse grooves are provided in the inner groove of the kit that abuts against the outer wall of the Hall sensor main body. The multiple groups of heat dissipation transverse grooves are more conducive to the discharge of hot air flow, enabling the hot air flow to be discharged outward from both ends of the heat dissipation transverse grooves along the heat dissipation transverse grooves. At the same time, the heat dissipation sticker plate can be assembled by using the heat dissipation positioning slot communicated with the heat dissipation transverse grooves, further increasing the heat dissipation efficiency of the entire Hall sensor main body, and assisting in improving the data accuracy and service life of the Hall sensor main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present utility model;

[0019] Figure 2 It is an exploded view of the sensor kit and the Hall sensor main body of the present utility model;

[0020] Figure 3 It is an enlarged view of the heat dissipation positioning slot of the present utility model;

[0021] Figure 4 It is an enlarged view of the heat dissipation sticker plate of the present utility model.

[0022] In the figure: 1. Glove box carbon brush holder; 2. Carbon brush holder top cover; 3. Sensor kit; 4. Hall sensor main body; 5. Sensor card slot; 6. Inner groove of the kit; 7. Heat dissipation transverse groove; 8. Heat dissipation longitudinal groove; 9. Heat dissipation positioning slot; 10. Function jack; 11. Heat dissipation sticker plate; 12. Heat dissipation plate; 13. Heat dissipation inner strip plate; 14. Assembly plate. Detailed implementation mode

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-4 , including: a glove box carbon brush holder 1, a carbon brush holder top cover 2 installed on the top of the glove box carbon brush holder 1, and a Hall sensor main body 4 installed in the carbon brush holder top cover 2; an assembly groove is provided on the top of the glove box carbon brush holder 1, so that the carbon brush holder top cover 2 can be embedded and installed on the top of the glove box carbon brush holder 1. Two groups of sensor card slots 5 are opened in the assembly groove on the top of the glove box carbon brush holder 1. The two groups of sensor card slots 5 form a 90° angle with the center point of the glove box carbon brush holder 1, and one end of the two groups of sensor card slots 5 close to the center of the glove box carbon brush holder 1 is an open port. Sensor kits 3 can be longitudinally inserted into both groups of sensor card slots 5. After the sensor kits 3 are seated in the slots of the sensor card slots 5, the front of the Hall sensor main body 4 is exposed from the open port for heat dissipation.

[0025] A kit inner groove 6 is opened in the cavity of the sensor kit 3. The groove shape of the kit inner groove 6 is adapted to the outer shape of the Hall sensor main body 4, so that the Hall sensor main body 4 is snapped into the groove of the kit inner groove 6. At the same time, an opening is also provided at the front end of the kit inner groove 6, which is on the same side as the open port of the sensor card slot 5. After the Hall sensor main body 4 is inserted into the groove of the kit inner groove 6, the front end of the Hall sensor main body 4 will be exposed at the opening and the open port. After the Hall sensor main body 4 is installed in the groove of the kit inner groove 6, a plurality of functional jacks 10 are opened inside the sensor kit 3, so that the upper part of the Hall sensor main body 4 can pass upward along the functional jacks 10.

[0026] A plurality of heat dissipation transverse grooves 7 arranged at intervals are longitudinally opened in the cavity of the kit inner groove 6. After the Hall sensor main body 4 extends into the groove of the kit inner groove 6, the back and both sides of the Hall sensor main body 4 will fit with the kit inner groove 6. At the same time, under the action of the heat dissipation transverse grooves 7, the heat generated by the Hall sensor main body 4 during heating will move to both sides along the heat dissipation transverse grooves 7, and finally be discharged outward from both ends of the grooves of the heat dissipation transverse grooves 7. At the same time, a plurality of heat dissipation longitudinal grooves 8 are connected between the plurality of heat dissipation transverse grooves 7, so that the channels of the heat dissipation transverse grooves 7 and the heat dissipation longitudinal grooves 8 are connected to improve heat dissipation.

[0027] The notch of the 7 heat dissipation transverse grooves 7 extends to one side and is connected and communicated with a heat dissipation positioning slot 9. The heat dissipation positioning slot 9 is recessed on the surface of the sensor kit 3. At the same time, the heat dissipation sticker plate 11 can be pasted on the surface of the Hall sensor body 4. Two sets of assembly plates 14 are fixedly arranged on the surface of the heat dissipation sticker plate 11. The two sets of assembly plates 14 can be pasted in the slot of the heat dissipation positioning slot 9. Corresponding screw holes are opened on the surfaces of the heat dissipation positioning slot 9 and the assembly plates 14. The screw can be combined with the screw hole, so that the heat dissipation sticker plate 11 can be limited on the surface of the Hall sensor body 4. At the same time, a heat dissipation plate 12 and a heat dissipation inner strip plate 13 are respectively installed on the outer ring and the inner ring of the surface of the heat dissipation sticker plate 11, which can assist in improving the heat dissipation capacity of the Hall sensor body 4 during use.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Glove box carbon brush holder assembly, comprising: A glove box carbon brush holder (1), a carbon brush holder top cover (2) mounted on the top of the glove box carbon brush holder (1), and a Hall sensor body (4) mounted in the carbon brush holder top cover (2); It is characterized by further comprising: The sensor kit (3) is sleeved outside the Hall sensor body (4), and a kit inner groove (6) is provided on the surface of the sensor kit (3). A plurality of heat dissipation transverse grooves (7) are transversely provided in the cavity of the kit inner groove (6). Both ends of the heat dissipation transverse grooves (7) extend to the opening of the kit inner groove (6) and are connected to the heat dissipation positioning slots (9). The heat dissipation plate (11) is attached to the surface of the Hall sensor body (4), and the surface of the heat dissipation plate (11) is connected to an assembly plate (14) connected to the heat dissipation positioning slot (9).

2. The glove box carbon brush holder assembly according to claim 1, characterized in that, The groove shape of the inner groove (6) of the kit is adapted to the outer shape of the Hall sensor body (4), and the inner groove (6) of the kit passes through the front end of the sensor kit (3).

3. The glove box carbon brush holder assembly according to claim 1, characterized in that, A functional jack (10) communicating with the inner groove (6) of the sensor kit is provided in the cavity of the sensor kit (3).

4. The glove box carbon brush holder assembly according to claim 1, characterized in that, Multiple groups of heat dissipation transverse grooves (7) are arranged along the longitudinal spacing in the cavity of the inner groove (6) of the sleeve, and the heat dissipation longitudinal grooves (8) are connected between the multiple groups of heat dissipation transverse grooves (7).

5. The glove box carbon brush holder assembly according to claim 1, characterized in that, The heat dissipation positioning slot (9) is sunken into the surface of the sensor kit (3), and corresponding screw holes are provided on the bottom of the heat dissipation positioning slot (9) and the surface of the assembly plate (14).

6. The glove box carbon brush holder assembly according to claim 1, characterized in that, Two groups of sensor slots (5) for allowing the sensor kit (3) to be inserted are provided on the top of the glove box carbon brush holder (1), and the two groups of sensor slots (5) form a 90° angle with the center point of the glove box carbon brush holder (1).

7. The glove box carbon brush holder assembly according to claim 1, characterized in that, A heat dissipation plate (12) is fixed on the outer ring of the surface of the heat dissipation plate (11), and a heat dissipation inner strip plate (13) is fixed on the center of the upper end of the heat dissipation plate (11).

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