A planar torsion spring where the spring comprises a first outer ring and a second inner ring. The inner ring is positioned within the first outer ring and possesses a same axis of rotation. The outer ring is connected to the inner ring with one or more splines. Each spline extends in one or more concentric arc segments to a maximum circumference relative to the position of the next concentric arc between the outer ring and the inner ring. The outer ring, the inner ring and the spline concentric arcs segments are positioned in the same plane. At least one spline connects the outer ring to the inner ring. The spline is positioned in a plurality of concentric arcs segments and sequentially positioning each arc to a maximum circumferential length relative to its position between the outer ring and inner ring.

Concentric arc spline rotational spring

A motor-fan assembly includes a working fan assembly having at least one working fan and a blower housing coupled to the working fan assembly. The blower housing provides a blower housing chamber and a cooling air inlet that draws cooling air into the blower housing chamber. A motor assembly is carried by the blower housing and rotates a shaft connected to the at least one working fan. The motor-fan assembly also includes a cooling fan assembly with at least one cooling fan connected to an end of the shaft opposite the at least one working fan. A motor vent cover encloses the cooling fan assembly and includes a cooling air outlet. Rotation of the at least one cooling fan draws cooling air in through the cooling air inlet, through the motor assembly, and exhausts cooling airflow through the cooling air outlet.

Motor-fan assembly with improved airflow and noise reduction properties

A planar flexure member for resisting rotation about a central axis thereof includes, in various embodiments, a central portion (215) comprising a plurality of attachment points (217); and at least one serpentine flexure arm (220a,220b) extending from the central portion in a plane. The arm(s) terminate in an arcuate mounting rail (225a, 225b) that includes a series of attachment points (217). The rails may be positioned in opposition to each other to partially define and occupy a planar circular envelope radially displaced from but surrounding the central portion of the flexure member. A portion of the serpentine arms may extend to (or substantially to) the envelope between the mounting rails.

Planar flexure members and actuators using them

The invention provides a fan assembly and an air blower provided with the same. The fan assembly comprises a fan, a motor and a cooling pipeline, wherein the fan comprises a first shell and an air inlet structure arranged at an air inlet of the first shell; the motor is connected with the fan and drives the fan; and a first end of the cooling pipeline communicates with the inside of the air inlet structure, and a second end of the cooling pipeline is arranged corresponding to the motor. By adoption of the technical scheme, the problem that in the prior art, a fan assembly is poor in cooling effect is solved.

Fan assembly and air blower provided with same

The invention discloses a cylinder bracket component. The cylinder bracket component comprises a cylinder and a bracket used for supporting the cylinder, and a cooling oil passage is arranged in a base body of the combined structure of the cylinder and bracket. By means of the technical scheme, refrigerant oil in the annular cooling oil passage enables the temperature at the end of the compressor cylinder to be lowered, and the efficiency of the compressor is effectively improved.

Cylinder bracket component

A leaf spring ( 100 ) comprises at least two spring arms ( 120, 130 ) and an inner fixing hole ( 110 ). The at least two spring arms ( 120, 130 ) are evenly distributed around a center of the inner fixing hole ( 110 ); each spring arm is of the same structure, and an outer fixing hole ( 122 ) is disposed at an outermost end of each spring arm. Further provided are a leaf spring group and a compressor. The leaf spring group comprises multiple leaf springs, and the compressor comprises the leaf spring group. The provided leaf spring has a structure of multiple concentric circular arms or a structure of concentric vortex arms, and the leaf spring has smaller equivalent mass, so that the rigidity and inherent frequency requirements can be met without the need of increasing the mass of the components, thereby reducing the product mass and saving the cost.

Leaf Spring, Leaf Spring Group, and Compressor

The utility model provides a screw compressor The screw compressor comprises a screw rotor, a star wheel and a housing, wherein the screw rotor and the star wheel are placed in the housing; a spiral groove of the screw rotor is meshed with a star wheel tooth piece of the star wheel; a closed element volume is jointly defined by the star wheel tooth piece, the spiral groove and the housing; a plurality of blind holes are formed in the surface, where the star wheel tooth piece is sealed with the housing, of the star wheel tooth piece and arranged in a honeycomb manner, or a coating is arranged on the surface, where the star wheel tooth piece is sealed with the housing, of the star wheel tooth piece The utility model further relates to an air conditioner According to the screw compressor and the air conditioner disclosed by the utility model, the sealing structure of the star wheel tooth piece and the housing adopts a honeycomb-like sealing structure, thus, the high pressure airflow can generate a turbulence effect when passing through the honeycomb zone to improve the airflow damping effect, so as to facilitate the formation of oil film and achieve a good sealing effect; the surface of the star wheel tooth piece is coated with the coating, so that the tolerance to the impurities is strengthened, the sealing effect is good, the phenomenon that the compressor is stuck due to the impurities can be reduced, and the reliability of the compressor is enhanced

Screw compressor and air conditioner

The utility model provides a linear compressor and have its refrigeration plant, this linearity compressor are including the first cylinder and second cylinder and corresponding first piston and the second piston that set up both sides in the casing, and through connecting piece fixed connection between first piston and the second piston, the inside of first piston, second piston and connecting piece has the hollow portion of mutual intercommunication, and linear motor makes first piston and second piston reciprocating motion and produce compressed gas in the compression chamber. The elastic component provides elastic restoring force to first piston and second piston. The compressed gas that treats who is got into by the gas access that sets up on the connecting piece distinguishes compressed discharge alternately. Get into the compression chamber owing to treat the connecting piece of compressed gas from two pistons of linear compressor between, can reduce and breathe in overheatedly, improved the volume efficiency of compressor, simultaneously because the stroke is little, two pistons longe -lived, the reliability improves. The utility model also provides a refrigeration plant who has above -mentioned linear compressor.

Linear compressor and have its refrigeration plant

The invention provides a plate spring. The plate spring comprises at least two spring arms and an inner fixing hole, wherein the at least two spring arms and the inner fixing hole are centrally and uniformly distributed; the structure of each spring arm is the same; the outermost end of each spring arm is provided with an outer fixing hole. The invention also provides the plate spring assembly and the compressor. The plate spring assembly comprises a plurality of plate springs. The compressor comprises the plate spring assembly. According to the plate spring, the structure of multiple concentric circular arms and a concentric spiral arm is adopted; the plate spring has smaller equivalent mass, and the situation that parts are increased to meet the requirements on rigidity and natural frequency is avoided, so that the product quality is reduced and the cost is reduced.

Plate spring, plate spring assembly and compressor

The invention provides a speed reducer structure and a robot with the same. The speed reducer structure comprises a needle tooth groove, a cycloidal wheel module and a needle tooth part; and the needle tooth groove is formed in the inner wall of the needle tooth groove. The cycloidal wheel module is arranged in the needle tooth groove. The needle tooth part comprises a first needle tooth and a second needle tooth; and the first needle tooth and the second needle tooth are arranged in the needle tooth groove, and are positioned between the outer peripheral surface of the cycloidal wheel moduleand the groove bottom of the needle tooth groove. The needle tooth part adopts split needle teeth: the first needle tooth and the second needle tooth, so that the cycloidal wheel module and the splitneedle teeth are relatively independent during acting, and deflection angles of the needle teeth are effectively reduced. When one cycloid in the cycloidal wheel module is engaged with the needle teeth for stressing, as the lengths of axes of the needle teeth are reduced, the contacted areas of the needle teeth with the cycloids are not influenced by needle tooth holes or cycloidal profile axis machining errors, and full contacted engagement is realized. In addition, the split needle teeth are adopted; and the two split needle teeth form a gap channel in the connecting place to facilitate lubrication of the needle teeth.

Hu Yusheng

Papers

Leaf Spring, Leaf Spring Group, and Compressor

Screw compressor and air conditioner

Linear compressor and have its refrigeration plant

Plate spring, plate spring assembly and compressor

Speed reducer structure and robot with same