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Pump for gas

A technology of gas and diaphragm pumps, applied in pumps, liquid variable displacement machines, pumps with flexible working elements, etc., can solve durability problems and other problems, improve heat dissipation performance, improve reliability and quality, and suppress temperature rise Effect

Active Publication Date: 2018-07-31
MAXELL HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the conventional diaphragm pump using such a mechanism, since the crank arm driven by the motor swings, the transmission portion of the diaphragm with the end of the crank arm moves in a swinging manner as the integral crank arm swings. , a large deformation occurs, and correspondingly, it is easy to cause problems in durability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0044] Below, based on the above Figure 1 to Figure 11 , the gas pump according to the first embodiment of the present invention will be described. In this embodiment, an example of an air pump used as an air pump for sending air to each airbag in a massage machine having a plurality of airbags pressing a user's massage target site will be described.

[0045] In each of the above-mentioned figures, the gas pump 1 according to the present embodiment is configured to include: two pump parts 21 and 22 arranged in the casing 10 at intervals; The transmission part 31 is connected and movable between the two diaphragms 23 and 24 ; the eccentric cam part 40 rotates while contacting the transmission part 31 ; and the motor 50 rotationally drives the eccentric cam part 40 .

[0046] The above-mentioned pump units 21 and 22 are diaphragm pumps, and are configured so that two of them are disposed on the outer peripheral portion of the hollow container-shaped housing 10 so as to face ea...

no. 2 approach

[0066] Based on the above Figure 12 to Figure 14 , the gas pump according to the second embodiment of the present invention will be described. In this Embodiment, the example of the pump for air which is an air pump of a massage machine is demonstrated.

[0067] In each of the above-mentioned figures, the gas pump of the present embodiment includes the pump parts 21, 22, the transmission part 32, the eccentric cam part 40, and the motor 50 in the same manner as the above-mentioned first embodiment. On the other hand, as a different point, it has The transmission part 32 has a structure in which a plurality of protruding parts serving as heat dissipation parts 32d protrude from the outer periphery of the vicinity of the contact surfaces 32b and 32c, and an outer edge part 32e is provided on the outer side thereof.

[0068] In addition, the pump parts 21 and 22, the eccentric cam part 40, and the motor 50 of the gas pump of this embodiment have the same structure as that of th...

no. 3 approach

[0084] Based on the above Figure 15 to Figure 17 , the gas pump according to the third embodiment of the present invention will be described. In this Embodiment, the example of the pump for air which is an air pump of a massage machine is demonstrated.

[0085] In each of the above-mentioned figures, the gas pump of this embodiment includes the pump parts 21, 22, the transmission part 33, the eccentric cam part 40, and the motor 50 similarly to the above-mentioned second embodiment. On the other hand, it has the following points as differences: Structure: The transmission part 33 is further provided with the partition wall part 33f which traverses between the several protrusion parts which are the heat dissipation parts 33d, and partitions and closes the gap part between the protrusion parts.

[0086] In addition, the pump parts 21 and 22, the eccentric cam part 40, and the motor 50 of the gas pump of this embodiment have the same structure as that of the said 1st and 2nd em...

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PUM

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Abstract

In this pump for a gas, a transmission part that is linked to a diaphragm and that moves back and forth allows heat produced by friction with an eccentric cam part to be released to the periphery, deformation due to temperature increase in the transmission part can be minimized, and the precision of factors such as the shape of the transmission part can be maintained to prevent the diaphragm frombeing adversely affected. A heat-dissipating part (31d) is provided near a surface of contact between a transmission part (31) and an eccentric cam part (40), the surface area of the transmission part(31) is increased, and performance of heat dissipation from the transmission part (31) into the surrounding atmosphere is improved. Therefore, excessive temperature increase in the transmission part(31) caused by frictional heat occurring with the contact and friction between the eccentric cam part (40) and the transmission part contact surface is suppressed, heat deformation of the transmissionpart (31) is kept to a required minimum, adverse effects on portions other than the pump, such as diaphragms (23, 24), due to deformation of the transmission part (31) are minimized, and the reliability and quality of the pump are improved.

Description

technical field [0001] The present invention relates to a diaphragm type gas pump used as an air pump or the like for sending air to an air bag that expands / contracts by air supply / exhaust. Background technique [0002] Diaphragm pumps are positive displacement pumps that repeatedly increase the internal volume of the pump to inhale and transfer the target fluid by making the diaphragm reciprocate, and discharge the fluid by reducing the internal volume of the pump. Since the sliding part is difficult to leak, and has the advantage of being able to transport clean and non-polluting fluids such as lubricating oil, it has been widely used in air pumps for transporting air. [0003] Among such diaphragm pumps, a diaphragm pump using an electric motor as a driving source for the diaphragm has been widely used, and a typical example thereof is disclosed in Japanese Patent Publication No. Sho 48-25701. This conventional diaphragm pump has an extremely simple drive mechanism reali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B45/04
CPCF04B45/04
Inventor 吉本慎之介
Owner MAXELL HLDG LTD