Pumping and heat dissipation module

Abstract

A pump is used to solve the problem of complicated manufacturing steps and high manufacturing cost of the existing pump. The pump comprises a housing having a ring wall and a top plate integrally connected to the ring wall, the top plate and the ring wall surrounding a container groove; a spacer located in the container groove, the spacer separating a first flow channel and a second flow channel in the container groove, the first flow channel communicating with a discharge hole, the second flow channel communicating with an injection port, the spacer having a communication hole, the first flow channel and the second flow channel being communicated by the communication hole; and a driving module for driving a working liquid to flow in the first flow channel and the second flow channel. The utility model also relates to a heat dissipation module with the pump. The utility model can reduce the manufacturing cost and improve the production efficiency.

Description

Technical Field

[0001] This utility model relates to a fluid drive device, and more particularly to a pump and a heat dissipation module having the pump. Background Technology

[0002] Please refer to Figure 1 The present invention is an existing pump 9, which has a base 91 and a top cover 92. The base 91 houses the rotor and stator, and the top cover 92 is fastened to the base 91 by a locking mechanism. A sealing ring 93 is provided between the top cover 92 and the base 91 to form a liquid-tight connection. However, the base 91 and the top cover 92 usually require CNC machining or etching, which involves complex manufacturing steps and results in high manufacturing costs for the pump 9. Furthermore, after the base 91 and the top cover 92 are manufactured separately, they must be assembled. Due to dimensional tolerances of the top cover 92 and the base 91, or defects, the assembly yield is prone to problems.

[0003] In view of this, there is indeed a need to improve the existing pumps. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a pump and a heat dissipation module incorporating the pump, wherein the pump cover and the base are integrally formed to reduce production costs.

[0005] The directional terms or similar terms used throughout this utility model, such as "front", "back", "left", "right", "top", "bottom", "inner", "outer", "side", etc., are mainly for reference to the directions in the accompanying drawings. Each directional term or similar term is only used to assist in explaining and understanding the various embodiments of this utility model and is not intended to limit this utility model.

[0006] The use of the quantifiers “a” or “an” for the elements and components described throughout this utility model is merely for convenience and to provide the general meaning of the scope of this utility model; in this utility model, it should be interpreted as including one or at least one, and a single concept also includes multiple cases, unless it clearly means otherwise.

[0007] The terms “first,” “second,” … and “Nth” used throughout this utility model are mainly used to distinguish different elements or features (such as elements, directions, or steps), and do not indicate the maximum or minimum number of these elements or features possessed by a corresponding subject or method, nor do they limit the order of priority.

[0008] The terms "combination," "integration," or "assembly" used throughout this utility model mainly include those that allow for separation without damaging the components after connection, or those that make the components inseparable after connection. Those skilled in the art can choose the appropriate term based on the material of the components to be connected or the assembly requirements.

[0009] The pump of this utility model includes a housing having a ring wall and a top plate, the top plate being integrally formed and connected to the ring wall, the top plate and the ring wall surrounding to form a receiving groove; a spacer located in the receiving groove, the spacer separating a first flow channel and a second flow channel in the receiving groove, the first flow channel communicating with a drain hole, the second flow channel communicating with a fill port, the spacer having a connecting hole, the first flow channel and the second flow channel being connected by the connecting hole; and a drive module for driving a working fluid to flow in the first flow channel and the second flow channel.

[0010] Therefore, the pump and heat dissipation module of this utility model, by integrally forming the top plate and the ring wall of the pump housing, can eliminate the steps of separately processing and manufacturing the top plate and the ring wall, as well as the steps of assembling and connecting the top plate and the ring wall, thereby eliminating the risk of poor assembly yield, and thus reducing manufacturing costs and improving production efficiency.

[0011] The housing is formed by stamping the top plate and the ring wall from a single plate. This allows the housing and the receiving groove to be formed in one step, simplifying the manufacturing process.

[0012] The plate forms a joint around the unpressed portion of the ring wall. This joint allows the housing to achieve a liquid-tight connection with a heat sink.

[0013] The spacer has a first surface and a second surface facing each other. The first surface has a first flow channel, and the second surface has a second flow channel. A connecting hole extends through the first surface and the second surface to connect the first flow channel and the second flow channel. This allows the working fluid to enter the second flow channel through the injection port, enter the first flow channel through the connecting hole, and then flow out through the drain hole.

[0014] The drain hole extends through both the first surface and the second surface. Thus, the drain hole connects to the liquid inlet of the heat sink via the opening of the receiving groove.

[0015] The injection port is located on the side edge of the spacer. Thus, the injection port can be laterally connected to the liquid outlet of the heat sink.

[0016] The drive module includes an impeller located in the connecting hole of the spacer, with a stamina ring disposed on the outer periphery of the impeller to drive its rotation. Thus, the impeller can drive the working fluid from the second flow channel into the first flow channel.

[0017] The spacer has an annular groove that surrounds the connecting hole but is not connected to it. The stator is located in the annular groove, which is filled with a waterproof material to cover the stator. This prevents the stator from short-circuiting.

[0018] The annular groove has a notch located in the second flow channel, and the stator has a notch located in the notch. In this way, the stator does not obstruct the second flow channel, allowing the working fluid to flow smoothly.

[0019] The drive module includes a control unit electrically connected to the stator. The control unit is located in a receiving groove of the spacer, which is filled with a waterproof material to cover the control unit. This prevents the control unit from short-circuiting.

[0020] The heat dissipation module of this utility model includes a pump as described above and a heat sink having a flow channel with an inlet and an outlet. The pump is liquid-tightly bonded to a surface of the heat sink. The inlet is aligned with a drain hole on the pump, and the outlet is aligned with a fill port on the pump. Thus, the pump housing is integrally formed with the top plate and the annular wall, thereby reducing manufacturing costs and improving production efficiency.

[0021] The heat sink has a groove, the liquid inlet is connected to the groove, and the groove has an opening on its surface. The pump housing covers the opening. In this way, the pump can drive the working fluid to circulate through the flow channels of the heat sink via the opening.

[0022] The spacer is partially located in the groove, and the pump spacer protrudes from an opening in the groove to be received by the groove of the heat sink. The inlet is exposed laterally in the housing to supply the outlet located in the groove. In this way, the pump can drive the working fluid to circulate in the flow channel of the heat sink. Attached Figure Description

[0023] Figure 1 : An existing pump diagram; Figure 2 : An exploded perspective view of a preferred embodiment of the present invention; Figure 3 : An exploded bottom view of a preferred embodiment of the present invention; Figure 4: A preferred embodiment of the present invention, bottom view assembly diagram; Figure 5 Side view of a preferred embodiment of the present invention; Figure 6 : An exploded perspective view of a preferred embodiment of the heat dissipation module of this utility model.

[0024] Explanation of reference numerals in the attached figures: 1: Shell 1a: Circumferential wall 1b: Top plate 1c: Joint 11: Wire Port 2: Spacer 2a: First surface 2b: Second surface 21: First Stream 22: Drain hole 23: Second flow channel 24: Injection port 25: Connecting hole 26: Annular groove 26a: Notch 27: Receptacle 3: Drive Module 31: Impeller 311: Magnetic components 32: Axis 33: Stator 33a: Missing slot 34: Control Unit 34a: Circuit board 34b: Power cord 4: Heat sink 4a: Surface 41: Flow channel 42: Liquid inlet 43: Liquid outlet 44: slot 44a: Groove P: Pump M: Heat dissipation module S: Container T: Plate 9: Pump 91: Base body 92: Top cover 93: Sealing ring. Detailed Implementation

[0025] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments of this utility model are described below in detail with reference to the accompanying drawings; in addition, those symbols that are marked with the same symbols in different drawings are considered to be the same and their descriptions will be omitted.

[0026] Please refer to Figure 2 As shown, it is a preferred embodiment of the pump P of the present invention, including a housing 1, a spacer 2 and a drive module 3, wherein the spacer 2 and the drive module 3 are located inside the housing 1.

[0027] Specifically, the housing 1 may have a ring wall 1a connected to a top plate 1b, such that the ring wall 1a and the top plate 1b can surround each other to form a receiving groove S. The ring wall 1a and the top plate 1b can be integrally formed. For example, the housing 1 can be integrally formed by plastic injection molding. Alternatively, in this embodiment, the housing 1 can be made of metal, and the ring wall 1a and the top plate 1b can be formed by stamping a plate T, so that the ring wall 1a and the top plate 1b protrude from a surface of the plate T. In this way, the plate T can form the housing 1 and the receiving groove S in one step, which can simplify the processing steps. Preferably, the housing 1 may have a connecting portion 1c, through which the housing 1 can be liquid-tightly connected to a heat sink (described in detail later). Furthermore, after the plate T is stamped to form the ring wall 1a and the top plate 1b, the unstamped portion surrounding the ring wall 1a can form the connecting portion 1c.

[0028] Please refer to Figure 2 , Figure 3 As shown, the spacer 2 is located in the accommodating groove S. The spacer 2 has a first surface 2a and a second surface 2b, which are located on opposite sides of the spacer 2. The first surface 2a may face the top plate 1b, and the second surface 2b may face the opening of the accommodating groove S. The first surface 2a may have a first flow channel 21, which may be recessed in the first surface 2a. The first flow channel 21 may connect to a drain hole 22, which may be a through hole that passes through both the first surface 2a and the second surface 2b.

[0029] Please refer to Figure 3 , Figure 4 , Figure 5As shown, the second surface 2b may have a second flow channel 23, which may be recessed into the second surface 2b, such that the second flow channel 23 and the first flow channel 21 are located on opposite surfaces of the spacer 2, respectively. The second flow channel 23 may connect to an inlet 24, which may be located on the side edge of the spacer 2. The spacer 2 may have a connecting hole 25, which penetrates the first surface 2a and the second surface 2b, so that the first flow channel 21 and the second flow channel 23 can be connected by the connecting hole 25. In this way, a working fluid can enter the second flow channel 23 through the inlet 24, enter the first flow channel 21 through the connecting hole 25, and then flow out through the drain hole 22. In this embodiment, the spacer 2 can protrude from the opening of the trough S, so that the injection port 24 can be exposed laterally to the housing 1 without being blocked laterally by the housing 1, thus allowing the working fluid to easily enter through the injection port 24.

[0030] The drive module 3 is located in the container S to drive the flow of the working fluid. Specifically, the drive module 3 may have an impeller 31, which may have centrifugal fan blades. The impeller 31 is rotatably located in the container S. Furthermore, the impeller 31 may be located in the connecting hole 25 of the spacer 2. One end of a shaft 32 may be fixed to the annular wall 1a of the housing 1 to extend into the connecting hole 25. The impeller 31 rotates about the shaft 32 as the axis. In this embodiment, the impeller 31 may be located at least partially in the first flow channel 21 in the radial direction.

[0031] The drive module 3 has a stator 33, which can be arranged around the outer periphery of the impeller 31. The stator 33 can be formed by stacking silicon steel sheets to form several poles arranged in a ring. These poles can be wound to form coils, which is understood by those skilled in the art and will not be described in detail here. Furthermore, the impeller 31 has a magnetic element 311, which can be radially positioned opposite the stator 33 so that the magnetic field generated by the stator 33 after being energized repels the magnetic element 311, thereby driving the impeller 31 to rotate.

[0032] When the working fluid driven by the drive module 3 is a non-conductive fluid, the stator 33 can be located within the connecting hole 25 without additional waterproofing material. Alternatively, in this embodiment, the second surface 2b can have an annular groove 26 recessed within the second surface 2b, surrounding the connecting hole 25 but not connected to it. The stator 33 is located in the annular groove 26 radially opposite the magnetic component 311. The annular groove 26 can be filled with waterproof material such as waterproof adhesive to encapsulate the stator 33, thereby preventing the stator 33 from contacting the working fluid. In this embodiment, the annular groove 26 can have a notch 26a opposite the second flow channel 23, and the stator 33 can have a notch 33a, generally C-shaped, so that the notch 33a of the stator 33, after being accommodated in the annular groove 26, can be aligned with the notch 26a. In this way, the stator 33 will not obstruct the second flow channel 23, so that the working fluid can flow smoothly.

[0033] Furthermore, the drive module 3 may include a control unit 34 electrically connected to the stator 33. The control unit 34 can energize the stator 33 and transmit control signals. Specifically, the control unit 34 may be located in a receiving groove 27 of the spacer 2. The receiving groove 27 is preferably connected to the annular groove 26, so that a circuit board 34a of the control unit 34 can be connected to the stator 33 via a metal sheet or wire. The receiving groove 27 may extend through the first surface 2a and the second surface 2b of the spacer 2. The top plate 1b of the housing 1 may have a wire opening 11 to connect to the receiving groove 27, so that a power line 34b of the control unit 34 can extend from the wire opening 11 to connect to an external power source. Furthermore, the receiving groove 27 may be filled with a waterproof material such as waterproof adhesive to enclose the control unit 34, thereby preventing the control unit 34 from contacting the working fluid.

[0034] Please refer to Figure 6As shown, the pump P of this utility model can be installed on a heat sink 4 to form a heat dissipation module M. The joint 1c of the pump P can be liquid-tightly bonded to a surface 4a of the heat sink 4 by means of welding or gluing, for example. The heat sink 4 can be made of, for example, copper, aluminum, titanium, stainless steel or other thermally conductive materials. The heat sink 4 can be used to thermally contact a heat source, such as a processor, display chip or memory. The heat sink 4 can be formed by, for example, two plates joined together. In this embodiment, the shape of the heat sink 4 can be generally thin plate-shaped, which can help to make the heat dissipation module M thinner. The heat sink 4 has a flow channel 41, which allows the working fluid to circulate. The length of the flow channel 41 can be extended by forming several straight channels and several curved channels in the heat sink 4, so that the working fluid can dissipate heat during the flow through the flow channel 41.

[0035] Furthermore, the flow channel 41 may have an inlet 42 and an outlet 43. The inlet 42 is connected to the drain hole 22 of the pump P, and the outlet 43 is connected to the injection port 24 of the pump P. In this embodiment, the heat sink 4 may have a groove 44, and the outlet 43 is connected to the groove 44. The groove 44 may form an opening 44a on the surface 4a. The housing 1 of the pump P may be attached to the surface 4a and cover the groove 44, so that the protruding portion of the spacer 2 formed by the opening of the trough S can be located in the groove 44, so that the injection port 24 can be laterally connected to the outlet 43. In this way, the working fluid can flow through the pump P and be propelled by the pump P. Thus, the pump P can drive the flow of the working fluid in the flow channel 41 so that the heat energy of the working fluid can be dissipated.

[0036] In summary, the pump and heat dissipation module of this utility model, by integrally molding the top plate and the ring wall of the pump housing, can eliminate the steps of separately processing and manufacturing the top plate and the ring wall, as well as the steps of assembling and connecting the top plate and the ring wall, thereby eliminating the risk of poor assembly yield, and thus achieving the effects of reducing manufacturing costs and improving production efficiency.

[0037] Although the present invention has been disclosed using the above preferred embodiments, it is not intended to limit the present invention. Any modifications and alterations made by those skilled in the art to the above embodiments without departing from the spirit and scope of the present invention shall still fall within the technical scope protected by the present invention. Therefore, the protection scope of the present invention shall include all changes within the meaning and equivalent scope of the appended claims.

Claims

1. A pump, characterized in that, include A housing having a ring wall and a top plate integrally formed to the ring wall, the top plate and the ring wall surrounding each other to form a receiving groove; A spacer is located in the receiving groove, the spacer dividing the receiving groove into a first flow channel and a second flow channel, the first flow channel communicating with a drain hole, the second flow channel communicating with a fill port, the spacer having a connecting hole through which the first flow channel and the second flow channel are connected; and A drive module for driving a working fluid to flow between the first flow channel and the second flow channel.

2. The pump as claimed in claim 1, characterized in that, The housing is formed by stamping the top plate and the ring wall from a single plate.

3. The pump as described in claim 2, characterized in that, The plate forms a joint around the unpressed portion of the ring wall.

4. The pump as claimed in claim 1, characterized in that, The spacer has a first surface and a second surface opposite to each other. The first surface has the first flow channel, and the second surface has the second flow channel. The connecting hole passes through the first surface and the second surface to connect the first flow channel and the second flow channel.

5. The pump as described in claim 4, characterized in that, The drain hole extends through the first surface and the second surface.

6. The pump as claimed in claim 1, characterized in that, The injection port is located on the side edge of the spacer.

7. The pump as claimed in claim 1, characterized in that, The drive module has an impeller located in the communication hole of the spacer, and a stator ring is disposed on the outer periphery of the impeller to drive the impeller to rotate.

8. The pump as claimed in claim 7, characterized in that, The spacer has an annular groove that surrounds the connecting hole but is not connected to it. The stator is located in the annular groove, which is filled with a waterproof material to cover the stator.

9. The pump as claimed in claim 8, characterized in that, The annular groove has a notch located in the second flow channel, and the stator has a slot located in the notch.

10. The pump as claimed in claim 7, characterized in that, The drive module has a control unit electrically connected to the stator, the control unit being located in a receiving groove of the spacer, the receiving groove being filled with waterproof material to cover the control unit.

11. A heat dissipation module, characterized in that, include A pump as described in any one of claims 1 to 10; and A heat sink has a flow channel with an inlet and an outlet, and a pump is fluid-tightly attached to a surface of the heat sink. The inlet is opposite to a drain hole of the pump, and the outlet is opposite to a fill port of the pump.

12. The heat dissipation module as described in claim 11, characterized in that, The heat sink has a groove, the liquid inlet is connected to the groove, the groove forms an opening on the surface, and the pump housing covers the opening.

13. The heat dissipation module as described in claim 12, characterized in that, The pump spacer is formed by an opening in the reservoir to be received by the slot of the heat sink, and the inlet is exposed laterally in the housing to the outlet located in the reservoir.

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