Stable ultra-thin electromagnetic pump

Abstract

The utility model discloses a stable ultra-thin electromagnetic pump, which comprises a magnet, a pump shell unit and a magnetic conduction shell, the pump shell unit comprises metal electrodes, a metal joint and a plastic pump shell, the two metal electrodes are positioned on two sides of an inner flow channel of the plastic pump shell, and PINs which extend downwards and extend out of the bottom surface of the plastic pump shell are arranged on the metal electrodes. In the welding process, the PINs can be stably inserted and fixed in the welding holes of the PCB, so that the problem of displacement during welding is avoided, meanwhile, the firmness of welding points is improved, and the overall stability and reliability of the electromagnetic pump are enhanced. The pouring hole is formed in the metal joint and can be sealed by a screw, so that the sealing effect is effectively improved; the electrode plate parts on the two metal electrodes adopt asymmetric structures, so that the influence of low liquid injection rate on the conductivity of the electromagnetic pump can be improved, and the working efficiency of the electromagnetic pump is improved; in addition, the magnetic conductive shell can be conveniently and rapidly positioned and assembled through the tenon-and-mortise structure, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic pumps, in particular to a stable ultra-thin electromagnetic pump. Background Art

[0002] On May 17, 2024, the applicant applied for a Chinese invention patent entitled "Compact Ultra-Thin Electromagnetic Pump, Manufacturing Method, and Loop Thereof," with patent application number "202410618815.X." The patent discloses a compact ultra-thin electromagnetic pump comprising a magnet, a pump housing unit, and a magnetically conductive housing. The pump housing unit comprises a metal electrode, a metal connector, and a plastic pump housing integrally injection-molded and tightly bonded to the metal electrode and the metal connector. The plastic pump housing is provided with an injection hole connected to the internal flow channel, and the injection hole is provided with a seal. The integral injection-molded plastic pump housing achieves a compact and ultra-thin design. However, the pad portion of the metal electrode is flush with the lower surface of the plastic pump housing. When soldered to a PCB board, the pad portion cannot be inserted and positioned in the solder hole of the PCB board due to the lack of solder legs, resulting in easy displacement during soldering, and the solder joint is not very secure. Utility Model Content

[0003] In view of the above-mentioned shortcomings, the purpose of the present invention is to provide a stable ultra-thin electromagnetic pump.

[0004] To achieve the above-mentioned objectives, the technical solution provided by the present invention is: a stable ultra-thin electromagnetic pump, which includes a magnet, a pump housing unit and a magnetic shell, the pump housing unit includes a metal electrode, a metal joint and a plastic pump housing integrally injection-molded with the metal electrode and the metal joint, an inner flow channel is provided in the plastic pump housing, the two metal electrodes are located on both sides of the inner flow channel, the two metal joints are located at both ends of the plastic pump housing and are connected to the two ends of the inner flow channel, the magnet is arranged on the plastic pump housing at the upper and lower positions corresponding to the inner flow channel, the magnetic shell is sleeved on the plastic pump housing, the metal electrode is provided with a PIN pin extending downward and extending out of the bottom surface of the plastic pump housing, and the PIN pin can be firmly inserted and fixed in the soldering hole of the PCB board, thereby avoiding the displacement problem during welding, while improving the firmness of the soldering point and enhancing the overall stability and reliability of the electromagnetic pump.

[0005] As a preferred solution of the present invention, the number of PIN pins on the metal electrode is two, which are respectively located at the two ends of the metal electrode, which can further improve the firmness of welding.

[0006] As a preferred embodiment of the present invention, the metal joint is provided with a filling hole connected to the internal flow channel. A sealing screw is screwed into the filling hole. The sealing screw has a strong locking force, which can significantly improve the sealing effect. A sealing gasket is provided on the sealing screw to further enhance the sealing effect.

[0007] As a preferred solution of the present invention, there are two filling holes, which are respectively located on the two metal joints, so as to smoothly remove the heat transfer medium in the electromagnetic pump loop when the filling rate is low.

[0008] As a preferred solution of the present invention, the electrode plate portions on the two metal electrodes are respectively located on the two opposite inner walls of the inner flow channel and are arranged asymmetrically, which can increase the contact area between the electrode plate portions and the heat transfer medium in the loop, improve the effect of low injection rate on the conductivity of the electromagnetic pump, and thus improve the conductivity of the electromagnetic pump.

[0009] As a preferred solution of the present invention, the lengths of the electrode plates on the two metal electrodes are different, forming an asymmetric structure, which is simple in structure and easy to implement.

[0010] As a preferred solution of the present invention, the electrode plate portion slightly protrudes from the inner side wall of the inner flow channel, thereby increasing the contact area between the electrode plate portion and the heat transfer medium, thereby improving the working efficiency of the electromagnetic pump.

[0011] As a preferred solution of the present invention, a mortise and tenon structure is provided between the magnetic conductive shell and the plastic pump shell, so as to facilitate rapid positioning and installation of the magnetic conductive shell.

[0012] The beneficial effects of the present invention are as follows: the present invention has a reasonable structural design, and a PIN pin is added to the metal electrode. During the welding process, the PIN pin can be firmly inserted and fixed in the solder hole of the PCB board, avoiding the problem of displacement during welding, while improving the firmness of the soldering point, with good stabilization effect, and enhancing the overall stability and reliability of the electromagnetic pump. The injection hole is set on the metal joint, which can be sealed with screws, effectively improving the sealing effect; the electrode plate portion on the two metal electrodes adopts an asymmetric structure, which can improve the effect of low injection rate on the conductivity of the electromagnetic pump and improve the working efficiency of the electromagnetic pump; in addition, the mortise and tenon structure can facilitate and quickly position and assemble the magnetic shell, effectively improving production efficiency.

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 .

[0015] Figure 2This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .

[0016] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model.

[0017] Figure 4 Schematic diagram of the decomposition structure of the utility model Figure 1 .

[0018] Figure 5 Schematic diagram of the decomposition structure of the utility model Figure 2 . DETAILED DESCRIPTION

[0019] See also Figures 1 to 5 This embodiment provides a stable ultra-thin electromagnetic pump, which includes a magnet 1, a pump housing unit and a magnetic conductive housing 2.

[0020] The pump housing unit includes a metal electrode 3, a metal joint 4, and a plastic pump housing 5 that is integrally injection molded with the metal electrode 3 and the metal joint 4. An internal flow channel 51 is provided in the plastic pump housing 5. The two metal electrodes 3 are located on both sides of the internal flow channel 51, and the two metal joints 4 are located at both ends of the plastic pump housing 5 and are connected to the two ends of the internal flow channel 51.

[0021] The metal electrode 3 is provided with a PIN pin 31 extending downward and protruding from the bottom surface of the plastic pump housing 5. This PIN pin 31 securely inserts into and secures the metal electrode in a solder hole on the PCB, preventing displacement during soldering. This improves the strength of the solder joint and enhances the overall stability and reliability of the electromagnetic pump. In this embodiment, the metal electrode 3 preferably has two PIN pins 31, one at each end, to further enhance soldering stability.

[0022] The electrode plates 32 on the two metal electrodes 3 are respectively located on the opposing inner sidewalls of the inner flow channel 51 and are asymmetrically arranged. Specifically, the electrode plates 32 on the two metal electrodes 3 have different lengths, forming an asymmetrical structural arrangement. This asymmetrical structural arrangement can increase the contact area between the electrode plates 32 and the heat transfer medium within the loop, thereby improving the conductivity of the electromagnetic pump due to low injection rates. Preferably, the electrode plates 32 slightly protrude from the inner sidewalls of the inner flow channel 51. This increases the contact area between the electrode plates 32 and the heat transfer medium, thereby improving the operating efficiency of the electromagnetic pump.

[0023] An infusion hole 41 connected to the inner flow channel 51 is provided on the metal joint 4. The number of the infusion holes 41 can be one or more. In this embodiment, the number of the infusion holes 41 is preferably two, respectively located on the two metal joints 4. When the injection rate is low, the heat transfer medium in the electromagnetic pump loop can be smoothly removed. An internal thread is processed on the inner wall of the infusion hole 41. When sealing is required, a sealing screw 6 is screwed into the infusion hole 41. The locking force of the sealing screw 6 is good, which can significantly improve the sealing effect. Preferably, a sealing gasket, such as a rubber gasket, can be added to the sealing screw 6 to further improve the sealing effect.

[0024] The magnets 1 are positioned above and below the inner flow channel 51 on the plastic pump housing 5, and the magnetically conductive housing 2 is sleeved onto the plastic pump housing 5. Preferably, a mortise and tenon structure is provided between the magnetically conductive housing 2 and the plastic pump housing 5. For example, a latching protrusion 52 may be provided on the plastic pump housing 5, and a latching groove 21 may be provided on the magnetically conductive housing 2 corresponding to the latching protrusion 52. During assembly, the latching protrusion 52 fits into the latching groove 21, facilitating quick positioning and installation of the magnetically conductive housing 2 on the plastic pump housing 5.

[0025] During the welding process, since a PIN pin 31 is added to the metal electrode 3, the PIN pin 31 can be firmly inserted into and fixed in the soldering hole of the PCB board, thereby avoiding the problem of displacement during welding, and at the same time improving the firmness of the welding point, and the overall stabilization effect is good.

[0026] Based on the disclosures and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and alterations to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation to the present invention. As described in the above embodiments of the present invention, other pump bodies obtained by adopting the same or similar structures are all within the scope of protection of the present invention.

Claims

1. A stable ultra-thin electromagnetic pump, comprising a magnet, a pump housing unit and a magnetic shell, wherein the pump housing unit comprises a metal electrode, a metal joint and a plastic pump housing integrally injection-molded with the metal electrode and the metal joint, wherein an inner flow channel is provided in the plastic pump housing, two metal electrodes are located on both sides of the inner flow channel, two metal joints are located at both ends of the plastic pump housing and are connected to both ends of the inner flow channel, the magnet is arranged on the plastic pump housing at the upper and lower positions corresponding to the inner flow channel, and the magnetic shell is sleeved on the plastic pump housing, characterized in that: The metal electrode is provided with a PIN pin which extends downward and protrudes out of the bottom surface of the plastic pump housing.

2. The stable ultra-thin electromagnetic pump according to claim 1, characterized in that: There are two PIN pins on the metal electrode, which are located at two ends of the metal electrode respectively.

3. The stable ultra-thin electromagnetic pump according to claim 1, characterized in that: The metal joint is provided with a pouring hole communicated with the inner flow channel.

4. The stable ultra-thin electromagnetic pump according to claim 3, characterized in that: There are two perfusion holes, which are respectively located on the two metal joints.

5. The stable ultra-thin electromagnetic pump according to claim 3 or 4, characterized in that: The filling hole is screwed with a sealing screw.

6. The stable ultra-thin electromagnetic pump according to claim 5, characterized in that: A sealing gasket is provided on the sealing screw.

7. The stable ultra-thin electromagnetic pump according to claim 1, characterized in that: The electrode plates on the two metal electrodes are respectively located on two opposite inner side walls of the inner flow channel and are asymmetrically arranged.

8. The stable ultra-thin electromagnetic pump according to claim 7, characterized in that: The lengths of the electrode plate portions on the two metal electrodes are different.

9. The stable ultra-thin electromagnetic pump according to claim 7 or 8, characterized in that: The electrode plate portion slightly protrudes from the inner side wall of the inner flow channel.

10. The stable ultra-thin electromagnetic pump according to claim 1, characterized in that: A mortise and tenon structure is provided between the magnetic conductive shell and the plastic pump shell.

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