Heat dissipation structure of double-end piston pump

By designing cylinder head assembly and heat dissipation air holes in the double-head piston pump, and using the movement of the connecting rod to generate airflow, the problem of low heat dissipation efficiency of the existing double-head pump is solved, and efficient heat dissipation of the motor and the shell is achieved.

CN222333974UActive Publication Date: 2025-01-10SHENZHEN HUACHUANG TECH CO LTD
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Patent Information

Application Number
CN202421256631.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2025-01-10
Estimated Expiration
2034-06-03

AI Technical Summary

Technical Problem

The existing double-head pump has low heat dissipation efficiency, mainly because the cooling airflow is concentrated in the air inlet, making the air outlet difficult to cool, and the heat energy conduction inside the pump leads to low heat dissipation efficiency of the motor.

Method used

A heat dissipation structure of a double-headed piston pump is designed. By setting cylinder head components and heat dissipation air holes at both ends of the housing, the reciprocating movement of the connecting rod generates airflow to dissipate heat to the motor and the housing, achieving unidirectional flow of the airflow and efficient heat dissipation.

Benefits of technology

It improves the overall heat dissipation efficiency of the double-head pump, ensures cooling of the cylinder liner and cylinder head assembly, enhances the heat dissipation effect of the motor, and improves the heat exchange efficiency of the overall equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heat dissipation structure of a double-end piston pump, which is characterized in that a shell is connected with a motor, a rotating shaft of the motor enters the shell and is provided with an eccentric wheel, the motor drives two connecting rods to reciprocate through the eccentric wheel, and the two connecting rods are respectively arranged at two ends of the shell; cylinder sleeves are arranged at the two ends of the shell respectively, the connecting rod is provided with a leather cup, and the leather cup is installed in the cylinder sleeves. Cylinder cover assemblies are installed at the two ends of the shell respectively, each cylinder cover assembly comprises an end cover, a valve plate and a cylinder cover, the cylinder covers are connected with the cylinder sleeves, the valve plates are arranged between the end covers and the cylinder covers, the end covers are connected with the shell, and air inlets and air outlets are formed in the end covers; the shell is provided with heat dissipation air holes, and the heat dissipation air holes face the rotating ends of the motor and the connecting rod respectively; and during air outlet, the valve plate blocks the pipeline of the air inlet, and during air inlet, the valve plate blocks the pipeline of the air outlet. Air flow generated by reciprocating motion of the two connecting rods around the eccentric wheel can enhance heat dissipation of the motor, and the heat dissipation effect is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of double-head pumps, in particular to a heat dissipation structure of a double-head piston pump. Background Art

[0002] The existing double-head pump is driven by a motor to rotate the eccentric wheel, and the eccentric wheel drives two connecting rods to extend and retract respectively, and the cup head at the connecting rod end cooperates with the cylinder sleeve to compress and exhaust.

[0003] The compression cylinders at both ends of some double-headed pumps are connected by air pipes, and the two ends are respectively the air outlet and the air inlet. Although this type of structure can simplify the volume, its overall heat dissipation efficiency is relatively low. The main reason is that the cooler outside air is mainly concentrated at the air inlet end, and the air outlet end is difficult to be cooled by the air flow entering from the outside. In addition, during the operation of the double-headed pump, the heat energy generated between the eccentric wheel and the connecting rod, and the heat energy generated at the cylinder will be transmitted to the outer shell, and the motor connected to the outer shell itself is also a heat source, which also leads to the low heat dissipation efficiency of the motor.

[0004] Therefore, there is an urgent need for a heat dissipation structure of a double-head piston pump that can solve one or more of the above problems. Utility Model Content

[0005] In order to solve one or more problems existing in the prior art, the utility model provides a heat dissipation structure of a double-headed piston pump. The utility model adopts a technical solution to solve the above problems: a heat dissipation structure of a double-headed piston pump, which includes: a housing, the housing is connected to a motor, the rotating shaft of the motor enters the housing, the rotating shaft is equipped with an eccentric wheel, the motor drives two connecting rods to reciprocate through the eccentric wheel, and the two connecting rods are respectively arranged at two ends of the housing;

[0006] Cylinder sleeves are respectively arranged at both ends of the shell, and a leather cup is installed on the connecting rod, and the leather cup is installed in the cylinder sleeve;

[0007] Cylinder head assemblies are respectively installed at both ends of the shell, and the cylinder head assembly includes: an end cover, a valve plate and a cylinder head, the cylinder head is connected to the cylinder sleeve, the valve plate is arranged between the end cover and the cylinder head, the end cover is connected to the shell, and the end cover is provided with an air inlet and an air outlet;

[0008] The housing is provided with a heat dissipation hole, a first end of the heat dissipation hole faces the motor, and a second end of the heat dissipation hole faces the rotating end of the connecting rod;

[0009] When the air is discharged, the valve plate blocks the pipeline of the air inlet, and when the air is taken in, the valve plate blocks the pipeline of the air outlet.

[0010] In some embodiments, the valve plate is provided with an air inlet plate and an air outlet plate, and the air inlet plate and the air outlet plate swing back and forth under the action of the airflow.

[0011] Further, the end cover is provided with an air outlet groove and an air inlet hole, the air outlet groove is communicated with the air outlet, and the air inlet hole is communicated with the air inlet;

[0012] The cylinder head is provided with an air inlet groove and an air outlet hole, and the air inlet groove and the air outlet hole are communicated with the cylinder liner;

[0013] The air inlet sheet is arranged between the air inlet hole and the air inlet groove, and the air inlet sheet blocks the air inlet hole. The air outlet sheet is arranged between the air outlet hole and the air outlet groove, and the air outlet sheet blocks the air outlet hole.

[0014] In some embodiments, a plurality of heat dissipation holes are provided and arranged around the rotating shaft of the motor.

[0015] Furthermore, the connecting rod close to the heat dissipation hole is recorded as a driving connecting rod, and the driving connecting rod will cover or open the heat dissipation hole when rotating.

[0016] In some embodiments, a bell mouth is disposed at the second end of the heat dissipation hole.

[0017] In some embodiments, both ends of the shell are provided with fixing grooves, and the cylinder sleeve is limitedly installed in the fixing grooves.

[0018] In some embodiments, the motor is an outer rotor motor.

[0019] In some embodiments, the housing is provided with heat dissipation fins; the end cover is provided with heat dissipation fins.

[0020] The beneficial value achieved by the utility model is that the utility model realizes independent gas intake and compression and discharge actions at both ends through the cylinder head assemblies on both sides of the shell cooperating with the eccentric wheel-connecting rod mechanism in the middle, wherein the connecting rod will also cooperate with the heat dissipation air holes to generate airflow toward the motor end during rotation, and finally achieve unidirectional flow of airflow in the cylinder sleeves at both ends and the entry of outside air can dissipate heat to the cylinder sleeves and cylinder head assemblies, as well as dissipate heat to the motor end and the inside of the shell during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the utility model;

[0022] Figure 2 It is an internal schematic diagram of the utility model;

[0023] Figure 3 It is a partial exploded view of the utility model;

[0024] Figure 4 It is an exploded view of the cylinder head assembly of the present utility model.

[0025] [Reference Signs]

[0026] 1…housing 10…cavity 101…heat dissipation vent 11…connecting rod 110…cylinder sleeve 12…fixing groove 2…cover plate 3…cylinder head assembly 30…end cover 301…air outlet 302…air inlet 303…air outlet groove 304…air inlet hole 31…valve plate 310…air inlet plate 311…air outlet plate 32…cylinder head 320…air inlet groove 321…air outlet 4…motor 40…eccentric wheel. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more understandable, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from this description, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed below.

[0028] like Figure 1-Figure 4 As shown, the utility model discloses a heat dissipation structure of a double-head piston pump, which comprises: a housing 1, the housing 1 is provided with a cavity 10, the cavity 10 is sealed by a cover plate 2, the housing 1 is connected to a motor 4, the rotating shaft of the motor 4 enters the cavity 10 of the housing 1, an eccentric wheel 40 is installed at the free end of the rotating shaft, the motor 4 drives two connecting rods 11 to reciprocate through the eccentric wheel 40, and the two connecting rods 11 are respectively located at two ends of the cavity 10 of the housing 1;

[0029] Cylinder sleeves 110 are respectively disposed at both ends of the cavity 10 of the housing 1, and a leather cup is installed at the free end of the connecting rod 11, and the leather cup is installed in the cylinder sleeves 110;

[0030] Cylinder head assemblies 3 are respectively installed at both ends of the cavity 10 of the housing 1, and the cylinder head assembly 3 includes: an end cover 30, a valve plate 31 and a cylinder head 32, the cylinder head 32 is connected to the cylinder sleeve 110, the valve plate 31 is arranged between the end cover 30 and the cylinder head 32, the end cover 30 is connected to the housing 1, and the end cover 30 is provided with an air inlet 302 and an air outlet 301;

[0031] The housing 1 is provided with a heat dissipation hole 101, a first end of the heat dissipation hole 101 faces the motor 4, and a second end of the heat dissipation hole 101 faces the rotating end of the connecting rod 11;

[0032] When air is discharged, the valve plate 31 blocks the pipeline of the air inlet 302 , and when air is taken in, the valve plate 31 blocks the pipeline of the air outlet 301 .

[0033] The connecting rod 11 close to the heat dissipation holes 101, when its rotating end rotates around the eccentric wheel 40, will open or close part of the heat dissipation holes 101. Furthermore, the swing of this rotating end will also generate airflow, and finally achieve the blowing heat dissipation of the motor 4. The housing 1 also performs air suction heat dissipation. Due to the high-speed rotation of the eccentric wheel 40, this will make the heat exchange efficiency higher. The motor 4 can be an outer rotor motor, and the outer rotor motor can meet the driving requirements. Compared with other motors, the airflow formed by the heat dissipation holes 101 has a better heat dissipation effect on the outer rotor motor. Furthermore, the motor housing of the outer rotor motor can be provided with heat dissipation holes corresponding to the heat dissipation holes 101, and the heat dissipation holes face the coils inside the outer rotor motor.

[0034] In particular, since the distance between the two connecting rods 11 is relatively short, and the distance between them and the heat dissipation holes 101 is also relatively short, when the two connecting rods 11 are reciprocating, their rotating ends will generate airflow, and this airflow enters the motor 4 through the heat dissipation holes. Finally, the airflow generated by the reciprocating motion of the two connecting rods 11 around the eccentric wheel 40 will enhance the heat dissipation of the motor 4. Furthermore, in this process, the leather cups on both sides also reciprocate, and the reciprocating motion of the leather cups on both sides also forces the internal airflow to move, and the airflow is guided by the heat dissipation holes 101 to achieve heat dissipation of the motor 4.

[0035] Combination Figure 1 As shown, the housing 1 is provided with heat dissipation fins, and the end cover 30 is also provided with heat dissipation fins.

[0036] Specifically, combined Figure 3 As shown, the valve plate 31 is provided with an air inlet plate 310 and an air outlet plate 311, and the air inlet plate 310 and the air outlet plate 311 swing back and forth under the action of the airflow;

[0037] The end cover 30 is provided with an air outlet groove 303 and an air inlet hole 304, the air outlet groove 303 is communicated with the air outlet 301, and the air inlet hole 304 is communicated with the air inlet 302;

[0038] The cylinder head 32 is provided with an air inlet groove 320 and an air outlet hole 321, and the air inlet groove 320 and the air outlet hole 321 are communicated with the cylinder sleeve 110;

[0039] The air inlet sheet 310 is disposed between the air inlet hole 304 and the air inlet groove 320, and the air inlet sheet 310 blocks the air inlet hole 304. The air outlet sheet 311 is disposed between the air outlet hole 321 and the air outlet groove 303, and the air outlet sheet 311 blocks the air outlet hole 321.

[0040] For example, when the air is discharged, the air outlet sheet 311 is pressed into the air outlet groove 303 by the air flow, and the air outlet groove 303 is connected with the air outlet hole 321. Under the action of the air flow, the air inlet sheet 310 blocks the air inlet hole 304, and the air inlet groove 320 and the air inlet hole 304 are separated by the air inlet sheet 310.

[0041] When air is taken in, the air intake sheet 310 is pressed into the air intake groove 320 by the air flow, and the air intake groove 320 is connected with the air intake hole 304 . Under the action of the air flow, the air outlet sheet 311 blocks the air outlet hole 321 , and the air outlet groove 303 and the air outlet hole 321 are isolated by the air outlet sheet 311 .

[0042] The airflow entering from the outside can enter the cylinder liner 110 for compression without passing through a relatively long pipeline or connecting air pipe. Therefore, the time for the incoming airflow to be heated by the components is very short, which enables the cylinder liner 110 and adjacent components to obtain more sufficient heat dissipation. At the same time, in order to meet the requirements of separate air extraction and pressurization at both ends, the air inlet 302 and the air outlet 301 can also be located on the same side and have the same direction.

[0043] Specifically, combined Figure 2 , Figure 3 As shown, the heat dissipation holes 101 are provided in plurality and are arranged around the rotating shaft of the motor 4 (they can be arranged along the track of the rotating end of the connecting rod 11), wherein the connecting rod 11 close to the heat dissipation hole 101 is recorded as a driving connecting rod, and the driving connecting rod will cover or open the heat dissipation hole 101 when rotating. Furthermore, the second end of the heat dissipation hole 101 is provided with a bell mouth to enhance the heat dissipation effect.

[0044] Specifically, combined Figure 2 As shown, both ends of the cavity 10 of the housing 1 are provided with fixing grooves 12 , and the cylinder sleeve 110 is limitedly installed in the fixing grooves 12 .

[0045] In summary, the utility model realizes separate gas intake and compression and discharge actions at both ends through the cylinder head assemblies on both sides of the outer shell cooperating with the eccentric wheel-connecting rod mechanism in the middle, wherein the connecting rod will also cooperate with the heat dissipation holes to generate airflow toward the motor end during rotation, and finally achieves unidirectional flow of the airflow of the cylinder sleeves at both ends and the entry of outside air can dissipate heat to the cylinder sleeves and cylinder head assemblies, as well as dissipate heat to the motor end and the inside of the outer shell during operation.

[0046] The above-described embodiments only express one or more implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as a limitation of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A heat dissipation structure of a double-head piston pump, characterized in that: include: A housing, the housing is connected to a motor, a rotating shaft of the motor enters the housing, an eccentric wheel is installed on the rotating shaft, the motor drives two connecting rods to reciprocate through the eccentric wheel, and the two connecting rods are respectively arranged at two ends of the housing; Cylinder sleeves are respectively arranged at both ends of the shell, and a leather cup is installed on the connecting rod, and the leather cup is installed in the cylinder sleeve; Cylinder head assemblies are respectively installed at both ends of the shell, and the cylinder head assembly includes: an end cover, a valve plate and a cylinder head, the cylinder head is connected to the cylinder sleeve, the valve plate is arranged between the end cover and the cylinder head, the end cover is connected to the shell, and the end cover is provided with an air inlet and an air outlet; The housing is provided with a heat dissipation hole, a first end of the heat dissipation hole faces the motor, and a second end of the heat dissipation hole faces the rotating end of the connecting rod; When the air is discharged, the valve plate blocks the pipeline of the air inlet, and when the air is taken in, the valve plate blocks the pipeline of the air outlet.

2. The heat dissipation structure of the double-head piston pump according to claim 1, characterized in that: The valve plate is provided with an air inlet plate and an air outlet plate, and the air inlet plate and the air outlet plate swing back and forth under the action of the airflow.

3. The heat dissipation structure of the double-head piston pump according to claim 2, characterized in that: The end cover is provided with an air outlet groove and an air inlet hole, the air outlet groove is communicated with the air outlet, and the air inlet hole is communicated with the air inlet; The cylinder head is provided with an air inlet groove and an air outlet hole, and the air inlet groove and the air outlet hole are communicated with the cylinder liner; The air inlet sheet is arranged between the air inlet hole and the air inlet groove, and the air inlet sheet blocks the air inlet hole. The air outlet sheet is arranged between the air outlet hole and the air outlet groove, and the air outlet sheet blocks the air outlet hole.

4. The heat dissipation structure of the double-head piston pump according to claim 1, characterized in that: The heat dissipation holes are provided in plurality and are arranged around the rotating shaft of the motor.

5. The heat dissipation structure of the double-head piston pump according to claim 4, characterized in that: The connecting rod close to the heat dissipation hole is recorded as a driving connecting rod, and the driving connecting rod will cover or open the heat dissipation hole when rotating.

6. The heat dissipation structure of the double-head piston pump according to claim 1, characterized in that: The second end of the heat dissipation hole is provided with a bell mouth.

7. The heat dissipation structure of a double-head piston pump according to claim 1, characterized in that: Both ends of the shell are provided with fixing grooves, and the cylinder sleeve is limitedly installed in the fixing grooves.

8. The heat dissipation structure of a double-head piston pump according to claim 1, characterized in that: The motor is an outer rotor motor.

9. The heat dissipation structure of a double-head piston pump according to claim 1, characterized in that: The housing is provided with heat dissipation fins.

10. The heat dissipation structure of a double-head piston pump according to claim 1, characterized in that: The end cover is provided with heat dissipation fins.