Heat dissipation device of booster pump and booster pump

Abstract

The utility model relates to a heat dissipation device of a booster pump and the booster pump. The heat dissipation device of the booster pump comprises a motor, a fan and a coupler, rotating shafts of the motor and the fan are arranged along the same axis, the coupler comprises a fluted disc fixedly arranged on the rotating shaft of the fan and a transmission disc fixedly arranged on the rotating shaft of the motor, and the fluted disc sleeves the transmission disc in the circumferential direction; at least one slide way is outwards formed in the transmission disc in the radial direction, a sliding block is slidably connected into each slide way, the sliding blocks can move outwards along the slide ways to be meshed with the fluted disc, elastic pieces are connected between the sliding blocks and the transmission disc, and the elastic pieces are used for driving the sliding blocks to move inwards in the radial direction; the transmission disc connected with the motor in the coupler can realize the clutch effect of meshing with the fluted disc at a high speed and separating from the fluted disc at a low speed by utilizing the centrifugal force difference when the motor rotates at a high speed and a low speed, so that the fan is driven to rotate only at a high rotating speed of the motor, and the energy consumption of the motor for heat dissipation is reduced on the premise of ensuring that the motor is not overheated; and the power waste of the motor is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, in particular to a booster pump heat dissipation device and a booster pump. Background Art

[0002] With the updating and iteration of water purification products, water purifiers are developing towards the direction of small size and large flow, that is, the power of the booster pumps used in the water purifiers is getting bigger and bigger, while the size and space occupied by the booster pumps are decreasing, which will cause the heat generated by the booster pumps during operation to increase and become difficult to dissipate.

[0003] The current solution to this problem is mainly to add a fan to the booster pump or pump head to increase the heat dissipation effect by rotating the fan; in addition, for integrated design and cost savings, the fan's rotating shaft is generally connected to the rotating shaft of the motor in the pump to obtain power, but this will result in a portion of the power of the motor in the pump always being provided to the fan rotation.

[0004] During the actual use of the water purifier, the booster pump has high and low speed states. In the high speed state, the output power of the booster pump is higher, the heat generated is higher, and additional heat dissipation is required. Conversely, in the low speed state, additional heat dissipation is usually not required. At this time, the rotation of the fan for heat dissipation will cause a waste of power for the booster pump. Utility Model Content

[0005] Based on this, it is necessary to provide a booster pump cooling device and a booster pump that can avoid power waste while ensuring heat dissipation effect in order to address the problem that the fan currently used to cool the booster pump keeps turning all the time, resulting in power waste in the booster pump motor.

[0006] The present application first provides a booster pump heat dissipation device, comprising a motor, a fan and a coupling, wherein the motor and the fan shafts are arranged along the same axis, the coupling comprises a gear plate fixed to the fan shaft and a transmission plate fixed to the motor shaft, the gear plate being circumferentially outer-mounted on the transmission plate;

[0007] The transmission disc is provided with at least one slideway radially outwardly, and a slider is slidably connected in each of the slideways. The slider can move outwardly along the slideway to engage with the toothed disc, and an elastic member is connected between the slider and the transmission disc, and the elastic member is used to drive the slider to move radially inwardly.

[0008] In one embodiment, the transmission disc includes a transmission disc body and a transmission disc cover, the slideway is opened in the transmission disc body and has an opening along the axial direction, and the transmission disc can be fixed to the transmission disc body along the axial direction to close the opening.

[0009] In one embodiment, the transmission disc body includes a first disc body, a plurality of second disc bodies and a third disc body, each of the second disc bodies surrounds the first disc body in a circumferential direction, each of the second disc bodies corresponds to one of the slideways, and both ends of each of the second disc bodies are respectively fixed to the first disc body and the third disc body, one end of the slideway is located in the first disc body, and the other end radially penetrates the corresponding second disc body and the third disc body;

[0010] The transmission disc cover comprises a first cover body, a plurality of second cover bodies and a third cover body corresponding one by one to each part of the transmission disc body.

[0011] In one embodiment, the transmission disc body includes four second disc bodies, the first disc body is circular, the third disc body is annular, and the second disc bodies are evenly distributed circumferentially around the first disc body.

[0012] In one of the embodiments, a buckle is fixed on both sides of each second cover body along the circumferential direction, so that the second cover body and the corresponding second disk body are clamped and fixed by the buckle.

[0013] In one embodiment, one of the first disk body or the first cover body is fixedly provided with a central column, the end of the slider close to the central column has a connecting column, one end of the elastic member is hooked with the central column, and the other end is hooked with the connecting column corresponding to the slider.

[0014] In one embodiment, the first disk body is provided with a receiving cavity, each of the slideways is connected to the receiving cavity, the central column is fixed to the bottom wall of the receiving cavity, and the bottom wall of the receiving cavity is also fixed with a plurality of partition columns circumferentially around the central column to separate the elastic members.

[0015] In one of the embodiments, the inner wall of the slide has convex ribs extending along the length direction of the slide.

[0016] In one of the embodiments, the edges of the teeth of the toothed disk for engaging with the slider all have rounded corners.

[0017] A second aspect of the present application provides a booster pump, comprising a shell and the above-mentioned booster pump heat dissipation device, the motor is arranged inside the shell and can drive the booster pump to operate, the fan is located outside the shell and the rotating shaft of the fan is rotatably connected to the shell.

[0018] The above-mentioned boost pump heat dissipation device connects the motor and the fan through a coupling. The transmission plate connected to the motor in the coupling can utilize the centrifugal force difference when the motor rotates at high and low speeds to achieve a clutch effect of engaging the gear plate at high speed and disengaging the gear plate at low speed, so that the fan is driven to rotate only at high speed of the motor. Under the premise of ensuring that the motor will not overheat, the energy consumption of the motor for heat dissipation is reduced, thereby avoiding power waste of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the booster pump heat dissipation device of the present application;

[0020] Figure 2 for Figure 1 A three-dimensional view of the middle coupling from another angle;

[0021] Figure 3 for Figure 2 Exploded diagram of

[0022] Figure 4 for Figure 3 A stereogram from another direction;

[0023] Figure 5 for Figure 4 An enlarged view of the main body of the middle transmission disc;

[0024] Figure 6 This is a three-dimensional diagram of the booster pump of this application.

[0025] : 100, coupling; 10, toothed disc; 11, tooth groove; 20, transmission disc; 21, slideway; 21a, convex rib; 22, slider; 22a, connecting column; 22b, engaging protrusion; 23, elastic member; 30, transmission disc body; 31, first disc body; 311, accommodating cavity; 311a, center column; 311b, partition column; 32, second disc body; 33, third disc body; 40, transmission disc cover; 41, first cover body; 42, second cover body; 421, buckle; 43, third cover body; 200, motor; 300, fan; 1, casing. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, 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 those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] Please combine Figures 1 to 4 As shown, the present application first provides a booster pump heat dissipation device, including a motor 200, a fan 300 and a coupling 100. The rotating shafts of the motor 200 and the fan 300 are arranged along the same axis. The coupling 100 includes a gear plate 10 and a transmission plate 20 respectively arranged on the two rotating shafts. The gear plate 10 is circumferentially arranged on the transmission plate 20; the transmission plate 20 is radially provided with at least one slideway 21 outwardly, and each slideway 21 is slidably connected with a slider 22. The slider 22 can move outward along the slideway 21 to engage with the gear plate 10. An elastic member 23 is connected between the slider 22 and the transmission plate 20, and the elastic member 23 is used to drive the slider 22 to move radially inward.

[0033] In the present application, the motor 200 and the fan 300 are connected by a coupling 100. The transmission disk 20 in the coupling 100 connected to the motor 200 can utilize the centrifugal force difference when the motor 200 rotates at high and low speeds to achieve a clutch effect of engaging with the toothed disk 10 at high speed and disengaging with the toothed disk 10 at low speed, so that the fan 300 is driven to rotate only at a high speed of the motor 200. Under the premise of ensuring that the motor 200 will not overheat, the energy consumption of the motor 200 for heat dissipation is reduced, thereby avoiding power waste of the motor 200.

[0034] Specifically, when the motor 200 drives the transmission disc 20 to rotate, the slider 22 has a tendency to move outward along the slideway 21 under the action of centrifugal force. When the speed of the motor 200 increases to a point where the centrifugal force is greater than the elastic force of the elastic member 23, the slider 22 can move outward under the action of the centrifugal force to mesh with the toothed disc 10. At this time, the coupling 100 is in transmission connection, and the motor 200 can drive the fan 300 to rotate through the coupling 100.

[0035] On the contrary, when the speed of the motor 200 is reduced to a point where the centrifugal force is less than the elastic force of the elastic member 23, the slider 22 moves inward under the elastic force to disengage from the gear disc 10. At this time, the coupling 100 is disconnected, and the rotation of the motor 200 will not drive the fan 300 to rotate, thereby avoiding power waste.

[0036] More specifically, different models of motors 200 require different threshold temperatures for auxiliary heat dissipation. The heat dissipation requirements of different models of motors 200 can be met by simply selecting elastic parts 23 with different elastic coefficients according to the required heat dissipation temperature; the higher the required threshold temperature, the greater the elastic coefficient of the elastic part 23; and vice versa.

[0037] Please combine Figure 3 as well as Figure 4 As shown, in some embodiments, the transmission disk 20 includes a transmission disk body 30 and a transmission disk cover 40, the slideway 21 is opened in the transmission disk body 30 and has an opening along the axial direction, and the transmission disk 20 can be fixed to the transmission disk body 30 along the axial direction to close the opening, so as to facilitate the installation and maintenance of the slider 22 and the elastic member 23 inside the transmission disk 20.

[0038] Please combine Figure 3 as well as Figure 4 As shown, in some embodiments, the transmission disc body 30 includes a first disc body 31, a plurality of second disc bodies 32 and a third disc body 33, each second disc body 32 circumferentially surrounds the first disc body 31, each second disc body 32 corresponds to a slideway 21, and both ends of each second disc body 32 are respectively fixed to the first disc body 31 and the third disc body 33, one end of the slideway 21 is located in the first disc body 31, and the other end radially penetrates the corresponding second disc body 32 and the third disc body 33; the transmission disc cover 40 includes a first cover body 41, a plurality of second cover bodies 42 and a third cover body 43 corresponding to each part of the transmission disc body 30.

[0039] Optionally, in some embodiments, the transmission disc body 30 includes four second disc bodies 32, the first disc body 31 is circular, the third disc body 33 is annular, and the second disc bodies 32 are evenly distributed circumferentially with the first disc body 31 as the center; to ensure that when the transmission disc 20 is connected to the gear disc 10 through the slider 22, the force between the two is more uniform and the connection is more stable.

[0040] In addition, the first disk body 31 and the third disk body 33 are connected only by the second disk body 32, which reduces the overall mass of the transmission disk body 30. The same is true for the transmission disk cover 40, thereby reducing the overall mass of the transmission disk 20 to reduce the power waste caused by the motor 200 driving the transmission disk 20 to rotate at a low speed.

[0041] Please combine Figure 3 as well as Figure 4 As shown, in some embodiments, a buckle 421 is fixed on both sides of each second cover body 42 along the circumferential direction, so that the second cover body 42 and the corresponding second disk body 32 are clamped and fixed by the buckle 421 .

[0042] Of course, in some other embodiments, the transmission disc body 30 and the transmission disc cover 40 may also be fixed by bolt connection or other common fixing methods, and the present application does not make any further limitations here.

[0043] Please combine Figure 4 as well as Figure 5 As shown, in some embodiments, a center column 311a is fixedly provided on one of the first disk body 31 or the first cover body 41, and the end of the slider 22 close to the center column 311a has a connecting column 22a, and the elastic member 23 is a tension spring, one end of the elastic member 23 is hooked with the center column 311a, and the other end is hooked with the connecting column 22a of the corresponding slider 22.

[0044] Of course, in some other embodiments, the elastic member 23 may also be other elastic elements, and the connection only needs to be designed according to the elastic direction of the elastic member 23. For example, if the elastic member 23 is a compression spring, the elastic member 23 is connected to the slider 22 at the inner end along the radial direction and to the transmission disk 20 at the outer end.

[0045] Please combine Figure 4 as well as Figure 5 As shown, in some embodiments, the first disk body 31 is provided with a receiving cavity 311, each slideway 21 is connected to the receiving cavity 311, and a central column 311a is fixed to the bottom wall of the receiving cavity 311. The bottom wall of the receiving cavity 311 is also fixed with a plurality of partition columns 311b circumferentially around the central column 311a to separate the elastic members 23.

[0046] It is easy to understand that the opening of the accommodating cavity 311 in the first disc body 31 can further reduce the mass of the transmission disc body 30 , so as to reduce the power waste caused by the motor 200 driving the transmission disc 20 to rotate at a low speed.

[0047] In addition, a plurality of partition columns 311 b are provided to separate the elastic members 23 , so as to prevent the elastic members 23 from interfering with each other without significantly increasing the weight of the transmission plate 20 .

[0048] Please combine Figure 3 as well as Figure 5 As shown, in some embodiments, the inner wall of the slide 21 has a convex rib 21a extending along the length direction of the slide 21, and the convex rib 21a is used to support the slider 22 to change the surface contact between the slider 22 and the inner wall of the slide 21 into line contact, thereby reducing the contact area between the two, thereby reducing the friction force encountered by the slider 22 during the sliding process, and thereby making the slider 22 slide more smoothly under the action of centrifugal force.

[0049] Preferably, convex ribs 21 a are provided on the inner walls of the slideway 21 on both sides opposite to each other along the axial direction, and two convex ribs 21 a parallel to each other are provided on the inner wall of each side.

[0050] Please combine Figure 2 as well as Figure 5 As shown, in some embodiments, the edges of the tooth grooves 11 of the toothed disc 10 for engaging with the slider 22 have rounded corners to play a certain guiding role, making it easier for the slider 22 to be inserted into the tooth grooves 11 and engage with the toothed disc 10 .

[0051] Preferably, the slider 22 has an engagement protrusion 22 b that can engage with the tooth groove 11 on one side thereof close to the tooth groove 11 , and the edge of the engagement protrusion 22 b has a rounded corner to facilitate the engagement of the slider 22 with the toothed disc 10 .

[0052] Please refer to Figure 6 As shown, the second aspect of the present application provides a boost pump, including a shell 1 and the above-mentioned boost pump heat dissipation device, the motor 200 is arranged inside the shell 1 and can drive the boost pump to operate, the fan 300 is located outside the shell 1 and the rotating shaft of the fan 300 is rotatably connected to the shell 1.

[0053] In some embodiments, elytra are provided on the outer circumference of the shell 1 to increase the heat dissipation area of ​​the shell 1 and facilitate heat dissipation of the fan 300 .

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope 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 patent shall be based on the attached claims.

Claims

1. A booster pump heat dissipation device, characterized in that: The invention comprises a motor (200), a fan (300) and a coupling (100), wherein the rotating shafts of the motor (200) and the fan (300) are arranged along the same axis, and the coupling (100) comprises a toothed disc (10) fixedly arranged on the rotating shaft of the fan (300) and a transmission disc (20) fixedly arranged on the rotating shaft of the motor (200), and the toothed disc (10) is circumferentially sheathed on the transmission disc (20); The transmission disc (20) is provided with at least one slideway (21) radially outwardly, and each of the slideways (21) is slidably connected with a slider (22), and the slider (22) can move outwardly along the slideway (21) to engage with the toothed disc (10), and an elastic member (23) is connected between the slider (22) and the transmission disc (20), and the elastic member (23) is used to drive the slider (22) to move radially inwardly.

2. The booster pump heat dissipation device according to claim 1, characterized in that: The transmission disc (20) comprises a transmission disc body (30) and a transmission disc cover (40); the slideway (21) is disposed on the transmission disc body (30) and has an opening along an axial direction; the transmission disc (20) can be fixed to the transmission disc body (30) along an axial direction to close the opening.

3. The booster pump heat dissipation device according to claim 2, characterized in that: The transmission disc body (30) comprises a first disc body (31), a plurality of second disc bodies (32) and a third disc body (33), each of the second disc bodies (32) surrounds the first disc body (31) in the circumferential direction, each of the second disc bodies (32) corresponds to one of the slideways (21), and both ends of each of the second disc bodies (32) are respectively fixed to the first disc body (31) and the third disc body (33), one end of the slideway (21) is located in the first disc body (31), and the other end radially penetrates the corresponding second disc body (32) and the third disc body (33); The transmission disc cover (40) comprises a first cover body (41), a plurality of second cover bodies (42) and a third cover body (43) corresponding one-to-one to various parts of the transmission disc body (30).

4. The booster pump heat dissipation device according to claim 3, characterized in that: The transmission disc body (30) comprises four second disc bodies (32), the first disc body (31) is circular, the third disc body (33) is annular, and the second disc bodies (32) are evenly distributed in the circumferential direction with the first disc body (31) as the center.

5. The booster pump heat dissipation device according to claim 3, characterized in that: A buckle (421) is fixed on both sides of each second cover body (42) along the circumferential direction, so that the second cover body (42) and the corresponding second disk body (32) are buckled and fixed by the buckle (421).

6. The booster pump heat dissipation device according to claim 3, characterized in that: One of the first disk body (31) or the first cover body (41) is fixedly provided with a central column (311a), and one end of the slider (22) close to the central column (311a) has a connecting column (22a), one end of the elastic member (23) is hooked with the central column (311a), and the other end is hooked with the connecting column (22a) corresponding to the slider (22).

7. The booster pump heat dissipation device according to claim 6, characterized in that: The first disk body (31) is provided with a receiving cavity (311), and each of the slideways (21) is connected to the receiving cavity (311). The central column (311a) is fixedly arranged on the bottom wall of the receiving cavity (311). The bottom wall of the receiving cavity (311) is also fixedly provided with a plurality of partition columns (311b) circumferentially around the central column (311a) to separate the elastic members (23).

8. The booster pump heat dissipation device according to claim 1, characterized in that: The inner wall of the slideway (21) has a convex rib (21a) extending along the length direction of the slideway (21).

9. The booster pump heat dissipation device according to claim 1, characterized in that: The edges of the tooth grooves (11) of the toothed disk (10) for meshing with the slider (22) all have rounded corners.

10. A booster pump, characterized in that: It comprises a shell (1) and a booster pump heat dissipation device as claimed in any one of claims 1 to 9, wherein the motor (200) is arranged inside the shell (1) and can drive the booster pump to operate, and the fan (300) is located outside the shell (1) and the rotating shaft of the fan (300) is rotatably connected to the shell (1).

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