CN210898967U

CN210898967U - Electric pneumatic pump

Info

Publication number: CN210898967U
Application number: CN201921837047.8U
Authority: CN
Inventors: 唐朝
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-30
Anticipated expiration: 2029-10-29

Abstract

The utility model provides an electronic pneumatic pump, it includes upper cover, lower cover and organism, upper cover and lower cover cooperation installation, leave the negative pressure chamber between upper cover and the lower cover, be equipped with the impeller in the negative pressure chamber, the impeller is connected on direct current motor, and the upper cover is equipped with the air inlet, the upper cover constitutes the gas outlet with lower cover cooperation installation, its characterized in that, electrical apparatus intracavity be equipped with rectifier components and parts, including rectifier bridge heap UR, rectifier bridge heap UR and divider resistance R, direct current motor M establish ties, rectifier bridge heap UR and AC circuit are parallelly connected. Compared with the prior art, the utility model has the advantages that the number of circuit elements adopted in the working circuit is small, and the cost is saved; directly adopting a rectifier bridge stack to convert alternating current into direct current; the motor is protected to operate by adopting a resistor and utilizing the principle that a series circuit divides voltage and is not shunted; the structure of the air pressure pump is simple and clear, and the processing is convenient; the driving voltage value of the adopted high-voltage direct current motor is between 20V and 110V, and the working efficiency is improved under the condition of household power consumption.

Description

Electric pneumatic pump

Technical Field

The utility model relates to a domestic appliance field relates to the pneumatic pump, especially an electronic pneumatic pump.

Background

The pneumatic pump is an inflation or air extraction device, and is driven by a direct current motor or an alternating current motor, and the direct current motor can be more exquisite.

The existing structure is that an alternating current series motor is directly adopted for driving, or alternating current is adopted for voltage transformation and rectification through an external power adapter and is switched on a machine body to be changed into direct current so as to provide electric energy for a direct current motor. The existing transformation adopts a structure designed on a power line, and an AC-DC transformer is arranged at a plug. Or a built-in circuit board is designed in the machine body and rectified by complex electronic components.

Therefore, how to reduce the voltage reduction and rectification costs and simplify the structure of the rectifier circuit to achieve the same use effect is the research direction of the design.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an electronic pneumatic pump is provided.

The technical scheme of the utility model is that: the electric air pressure pump is characterized in that a rectification component is arranged in an electric appliance cavity of the machine body and comprises a rectification bridge stack UR, wherein the rectification bridge stack UR is connected with a voltage dividing resistor R and a direct current motor M in series, and the rectification bridge stack UR is connected with an AC circuit in parallel.

The utility model discloses further optimization scheme does: the positive pole of the direct current motor M is connected with one end of a divider resistor R, the other end of the divider resistor R is connected with the positive pole of a rectifier bridge stack UR, the negative pole of the direct current motor M is connected with the negative pole of the rectifier bridge stack UR, the L end of a live wire of an AC circuit is connected with the D end of the rectifier bridge stack UR, the N end of a zero line is connected with the B end of the rectifier bridge stack UR, the A end of the rectifier bridge stack UR is a negative pole, and the C end of the rectifier bridge stack UR is a positive.

The utility model discloses further optimization scheme does: the rectifier bridge stack UR is a full bridge stack.

The utility model discloses further optimization scheme does: the utility model provides an electronic pneumatic pump, it includes the pump body, is equipped with negative pressure chamber and electrical apparatus chamber in the pump body, be equipped with the impeller in the negative pressure chamber, the impeller is connected on direct current motor, and the negative pressure chamber is equipped with air inlet and gas outlet, its characterized in that, the electrical apparatus intracavity be equipped with rectifier components and parts, including rectifier bridge heap UR, rectifier bridge heap UR and divider resistance R establish ties, rectifier bridge heap UR and divider resistance R are connected on the AC circuit, rectifier bridge heap UR and direct current motor M are parallelly connected.

The utility model discloses further optimization scheme does: the live wire L end of the AC circuit is connected to one end of the divider resistor R, the other end of the divider resistor R is connected to the D end of the rectifier bridge stack UR, the C end of the rectifier bridge stack UR is connected with the N end of the zero line, the A end of the rectifier bridge stack UR is a negative electrode, the C end is a positive electrode, the positive electrode of the DC motor M is connected with the C end, and the negative electrode of the DC motor M is connected with the A end.

The utility model discloses further optimization scheme does: the driving voltage of the direct current motor is 20-110V.

Compared with the prior art, the utility model has the advantages that the number of circuit elements adopted in the working circuit is small, and the cost is saved; directly adopting a rectifier bridge stack to convert alternating current into direct current; the motor is protected to operate by adopting a resistor and utilizing the principle that a series circuit divides voltage and is not shunted; the structure of the air pressure pump is simple and clear, and the processing is convenient; the driving voltage value of the adopted high-voltage direct current motor is between 20V and 110V, and the working efficiency is improved under the condition of household power consumption.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the background art and explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is a circuit diagram of an operation according to the first embodiment.

Fig. 2 is a circuit diagram of the second embodiment.

Fig. 3 is a schematic structural view of the motor.

Fig. 4 is a schematic structural view of the air pump.

Fig. 5 is a schematic structural diagram of the machine body.

Fig. 6 is one of the structural diagrams of the upper cover.

Fig. 7 is a second schematic structural view of the upper cover.

Fig. 8 is one of the structural diagrams of the lower cover.

Fig. 9 is a second schematic structural view of the lower cover.

The upper view comprises an upper cover 1, a lower cover 2, a machine body 3, a negative pressure cavity 4, an electrical appliance cavity 3-1, a direct current motor M5, a motor shaft 5-1, a terminal 5-2, a switch 6, a resistor 7R and a rectifier bridge stack UR 8.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

As shown in fig. 3-9, the utility model discloses an upper cover 1, lower cover 2 and organism 3, upper cover 1 correspond with lower cover 2 and are equipped with mounting hole and screw hole separately, aim at corresponding mounting hole and screw hole, and the screw in fixes upper cover 1 and lower cover 2. The upper cover 1 and the lower cover 2 are installed in a matched mode to form a complete air inlet, the upper cover 1 is provided with an air outlet, a negative pressure cavity 4 is reserved between the upper cover 1 and the lower cover 2, and an impeller is arranged in the negative pressure cavity 4.

The one side of

lower cover

2 and 3 cooperation installations of organism is equipped with the mounting groove and both sides are equipped with the screw hole, and 2 mounting grooves of lower cover are overlapped at the open end of organism 3, and the mounting hole that 3 both sides of organism were equipped with aligns with the screw hole of lower cover 2, screw in screw fixed mounting.

An electric appliance cavity 3-1 is arranged in the machine body 3, a direct current motor M5 is arranged in the electric appliance cavity 3-1, one end of a direct current motor M5 is provided with a motor shaft 5-1, the motor shaft 5-1 penetrates through a center hole of the lower cover 2 to extend into the negative pressure cavity 4, and an impeller arranged in the negative pressure cavity 4 is arranged on the motor shaft 5-1.

The other end of the direct current motor M5 is provided with two terminals 5-2 which are respectively the anode and the cathode of the direct current motor M5, and the anode and the cathode of the direct current motor M5 are connected with the working circuit of the electric air pressure pump.

The DC motor M5 can be a DC motor with the model number of 380, 385, 390, 395, 360, 365, ZGA28RO, 05SP and the like on the market, and the voltage value that the DC motor M5 can bear is between 20V and 110 VV.

The AC circuit is a 220V commercial network circuit, the electric pneumatic pump is provided with an electric wire, a plug is arranged on the electric wire, and the plug is electrically connected with a zero live wire of the AC circuit.

Example one

A working circuit which carries out rectification and then voltage division.

As shown in fig. 1, the operating circuit includes a dc motor M5, a resistor R7, a switch 6 and a rectifier bridge stack UR8, a dc motor M5, a resistor R7, the switch 6 and the rectifier bridge stack UR8 are all connected in series, four ABCD end points are provided on the rectifier bridge stack UR8, an a end of the rectifier bridge stack UR8 is a negative electrode, a C end is a positive electrode, and a B end and a D end are input ports of the rectifier bridge stack UR 8.

Diodes are arranged between the A end and the D end, between the D end and the C end, between the A end and the B end, and between the B end and the C end of the rectifier bridge stack UR8, the direction of the diodes between the A end and the D end, and between the D end and the C end are consistent, the current trend is A → D, D → C, the direction of the diodes between the A end and the B end, and between the B end and the C end are consistent, and the current trend is A → B, B → C.

The A end of the rectifier bridge stack UR8 is connected with the negative electrode of the direct current motor M5, and a resistor R7 and a switch 6 are connected in series between the C end of the rectifier bridge stack UR8 and the positive electrode of the direct current motor M5.

The AC circuit is connected in parallel with a rectifier bridge stack UR8 in the working circuit, the zero line N end of the AC circuit is connected with the B end of the rectifier bridge stack UR8 of the working circuit, and the live line L end of the AC circuit is connected with the D end of the rectifier bridge stack UR8 of the working circuit.

In the working state, the switch 6 is turned off, current flows in from the L end of the live wire of the AC circuit, flows out from the C end through the B end or the D end of the rectifier bridge stack UR8, is divided by the resistor R7, flows into the DC motor M5, and drives the DC motor M5 to work.

Example two

The working circuit is divided and then rectified.

As shown in fig. 2, the operating circuit includes a dc motor M5, a switch 6, a rectifier bridge stack UR8, a dc motor M5, and a series connection between the switch 6 and the rectifier bridge stack UR8, four ABCD end points are provided on the rectifier bridge stack UR8, an a end of the rectifier bridge stack UR8 is a negative electrode, a C end is a positive electrode, and a B end and a D end are input ports of the rectifier bridge stack UR 8.

The A end of the rectifier bridge stack UR8 is connected with the negative electrode of the direct current motor M5, and the switch 6 is connected in series between the C end of the rectifier bridge stack UR8 and the positive electrode of the direct current motor M5.

The AC circuit is connected in parallel to a rectifier bridge stack UR8 in the working circuit, the N end of the zero line of the AC circuit is connected with the B end of the rectifier bridge stack UR8 of the working circuit, the L end of the live line of the AC circuit is connected with the D end of the rectifier bridge stack UR8 of the working circuit, and a resistor R7 is connected in series between the L end of the live line of the AC circuit and the D end of the rectifier bridge stack UR8 of the working circuit.

In the working state, the switch 6 is closed, current flows in from the L end of the live wire of the AC circuit, the resistor R7 connected between the L end of the live wire of the AC circuit and the D end of the rectifier bridge stack UR8 of the working circuit in series divides partial voltage, the working principle that the voltage division of the series circuit is not divided is utilized, only required rated voltage is provided for the direct current motor M5, the required rated voltage flows out from the C end through the B end or the D end of the rectifier bridge stack UR8 and flows into the direct current motor M5, and the direct current motor M5 is driven to work.

Traditional 385/365/380/360/395/390 direct current motor can't use high-voltage electricity, also can't work in the alternating current environment, the utility model provides high direct current motor M's operating voltage, add rectifier bridge stack UR8 and let the 220V alternating current become high voltage direct current, and add resistance R and carry out current-limiting and partial pressure, make direct current motor M can be at a stable, work between the 20~110V voltage that can bear (voltage is about 40V usually, can adjust according to the circumstances, traditional direct current motor is 12V), in order to reach saving component quantity, therefore, the cost is reduced, reduce the process time, the production efficiency is improved, because the component is few, be some ordinary inaccurate original paper again, therefore, the quality, the yields can accomplish to be better than traditional scheme a lot.

It is right above the utility model provides an electronic pneumatic pump has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the description of above embodiment is only used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The electric air pressure pump is characterized in that a rectification component is arranged in an electric appliance cavity of the machine body and comprises a rectification bridge stack UR, wherein the rectification bridge stack UR is connected with a voltage dividing resistor R and a direct current motor M in series, and the rectification bridge stack UR is connected with an AC circuit in parallel.

2. The electric pneumatic pump according to claim 1, wherein the positive pole of the dc motor M is connected to one end of a voltage dividing resistor R, the other end of the voltage dividing resistor R is connected to the positive pole of the rectifier bridge stack UR, the negative pole of the dc motor M is connected to the negative pole of the rectifier bridge stack UR, the L end of the live line of the AC circuit is connected to the D end of the rectifier bridge stack UR, the N end of the neutral line is connected to the B end of the rectifier bridge stack UR, the a end of the rectifier bridge stack UR is the negative pole, and the C end is the positive pole.

3. The electric pneumatic pump as claimed in claim 1, wherein the rectifier bridge stack UR is a full bridge stack.

4. The utility model provides an electronic pneumatic pump, it includes the pump body, is equipped with negative pressure chamber and electrical apparatus chamber in the pump body, be equipped with the impeller in the negative pressure chamber, the impeller is connected on direct current motor, and the negative pressure chamber is equipped with air inlet and gas outlet, its characterized in that, the electrical apparatus intracavity be equipped with rectifier components and parts, including rectifier bridge heap UR, rectifier bridge heap UR and divider resistance R establish ties, rectifier bridge heap UR and divider resistance R are connected on the AC circuit, rectifier bridge heap UR and direct current motor M are parallelly connected.

5. An electric pneumatic pump as claimed in claim 4, wherein the L end of the live line of the AC circuit is connected to one end of a voltage dividing resistor R, the other end of the voltage dividing resistor R is connected to the D end of a rectifier bridge stack UR, the C end of the rectifier bridge stack UR is connected to the N end of the neutral line, the A end of the rectifier bridge stack UR is a negative electrode, the C end is a positive electrode, the positive electrode of the DC motor M is connected to the C end, and the negative electrode of the DC motor M is connected to the A end.

6. The electric pneumatic pump as claimed in claim 4, wherein the rectifier bridge stack UR is a full bridge stack.

7. An electric pneumatic pump as in claim 4, wherein the DC motor driving voltage is 20-110V.