Heating pump

Abstract

A heating pump comprises a pump shell, a pump cover covering the pump shell and a heating component arranged in the pump cover, a water passing cavity is formed between the pump shell and the pump cover, the heating pump further comprises a heat conduction installation base assembly, a temperature controller and a fuse protector, the heat conduction installation base assembly is fixed to the heating component, and the temperature controller and the fuse protector are fixed to the heat conduction installation base assembly. The heat conduction mounting base assembly and the fuse are in contact with the heating component, and the temperature controller is in contact with the heat conduction mounting base assembly. According to the heating pump, the heat conduction installation base assembly is arranged and fixed to the heating component, the temperature controller and the fuse are fixed to the heat conduction installation base assembly through the screws and the nuts, and compared with a traditional fixing structure, an upper connecting piece of the traditional fixing structure can be omitted; therefore, the fixing structure of the temperature controller and the fuse is simpler, the temperature controller and the fuse are easier to assemble, the assembling efficiency is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of heating pump technology, and in particular to a heating pump. Background Technology

[0002] Chinese Patent Document No. CN222457729U, published on February 11, 2025, discloses a compact temperature control assembly and a heating pump cover, comprising: a safety control device; a temperature controller, the temperature controller and the safety control device being arranged side-by-side along a first direction; and a fixed temperature sensing plate, the fixed temperature sensing plate being disposed at the lower end of the temperature controller and the safety control device, the fixed temperature sensing plate extending along the first direction, and mounting holes respectively formed at both ends of the fixed temperature sensing plate in the first direction; wherein, two conductive posts are provided on the safety control device and the temperature controller at the end away from the fixed temperature sensing plate. The temperature controller of this compact temperature control assembly is fixed to the cover body by the fixed temperature sensing plate and the upper connector, and its fixing structure is relatively complex, making assembly difficult.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a heating pump that is simple in structure, easy to assemble, reliable in fixing, accurate in temperature measurement, and highly practical, so as to overcome the shortcomings of the prior art.

[0005] A heating pump designed for this purpose includes a pump housing, a pump cover fitted onto the pump housing, and a heating element disposed within the pump cover, with a water passage cavity formed between the pump housing and the pump cover. The pump is characterized by further including a thermally conductive mounting base assembly, a thermostat, and a fuse. The thermally conductive mounting base assembly is fixed to the heating element, and the thermostat and fuse are fixed to the thermally conductive mounting base assembly. The thermally conductive mounting base assembly and the fuse are in contact with the heating element, and the thermostat is in contact with the thermally conductive mounting base assembly.

[0006] The thermally conductive mounting bracket assembly includes a first thermally conductive mounting bracket and a second thermally conductive mounting bracket. The two ends of the thermostat are respectively fixed on the first thermally conductive mounting bracket. The fuse is disposed between the first thermally conductive mounting bracket and the second thermally conductive mounting bracket. One end of the fuse is fixed on the first thermally conductive mounting bracket, and the other end of the fuse is fixed on the second thermally conductive mounting bracket.

[0007] The first heat-conducting mounting base has an integrally formed upward-protruding heat-conducting part. The thermostat is in contact with the heat-conducting part, but the heat-conducting part is not in contact with the heating element.

[0008] A first fastener is provided on the first heat-conducting mounting base or heat-conducting part. The first fastener is located on both sides of the heat-conducting part. A first mounting plate is provided on the thermostat. A first mounting hole is provided at both ends of the first mounting plate. After the first fastener passes through the first mounting hole, a first locking member is provided so that the thermostat is fixed on the first heat-conducting mounting base.

[0009] A second fastener is provided at one end of the first heat-conducting mounting base, and a second mounting plate is provided on the fuse. A second mounting hole is provided at one end of the second mounting plate. After the second fastener passes through the second mounting hole, a second locking element is provided so that one end of the fuse is fixed on the first heat-conducting mounting base.

[0010] A third fastener is provided at one end of the second heat-conducting mounting base, and a third mounting hole is provided at the other end of the second mounting plate. After the third fastener passes through the third mounting hole, a third locking element is provided so that the other end of the fuse is fixed on the second heat-conducting mounting base.

[0011] The bottom of the first heat-conducting mounting base is provided with a first plane, the bottom of the fuse is provided with a second plane, and the heating component is provided with a third plane. The first plane and the second plane are respectively in contact with the third plane.

[0012] The thermostat has a fourth plane at the bottom and a fifth plane on the heat-conducting part, with the fourth and fifth planes fitting together.

[0013] The pump cover is provided with an annular mounting groove, and the heating element is annular and installed in the mounting groove; the two sides of the heating element are respectively inclined inward, and the angle between the two sides of the heating element is α, where α = 30°~60°.

[0014] It also includes an inlet pipe and an outlet pipe. The inlet pipe is installed on the pump cover, and the outlet pipe is installed on the pump casing. The inlet pipe, the water passage chamber, and the outlet pipe are connected in sequence. An impeller is installed in the water passage chamber.

[0015] A sealing ring is provided between the pump casing and the pump cover. The sealing ring is located on the outside of the pump casing and the pump cover, while the heating element is located on the inside of the pump cover.

[0016] The heating pump of this utility model has a heat-conducting mounting base assembly. The heat-conducting mounting base assembly is fixed on the heating component. The thermostat and fuse are fixed on the heat-conducting mounting base assembly by screws and nuts. Compared with the traditional fixed structure, the upper connecting part of the traditional fixed structure can be eliminated, making the fixing structure of the thermostat and fuse simpler. This makes the assembly of the thermostat and fuse easier, improves assembly efficiency, and reduces manufacturing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the heating pump in one embodiment of the present invention.

[0018] Figure 2 This is a partial structural diagram of the heating pump in one embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the assembly structure of the heat-conducting mounting base assembly, the temperature controller, and the fuse in one embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the overall structure of the temperature controller in one embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the overall structure of the first heat-conducting mounting base in one embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the overall structure of the pump cover and heating component in one embodiment of the present invention.

[0023] Figure 7 This is a cross-sectional view of the heating pump in one embodiment of the present invention. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] See Figures 1-7 This heating pump includes a pump housing 1, a pump cover 2 covering the pump housing 1, and a heating element 4 disposed inside the pump cover 2. A water passage cavity 3 is formed between the pump housing 1 and the pump cover 2. It also includes a heat-conducting mounting base assembly, a thermostat 5, and a fuse 6. The heat-conducting mounting base assembly is fixed on the heating element 4, and the thermostat 5 and the fuse 6 are fixed on the heat-conducting mounting base assembly. The heat-conducting mounting base assembly and the fuse 6 are in contact with the heating element 4, and the thermostat 5 is in contact with the heat-conducting mounting base assembly.

[0026] The thermally conductive mounting bracket assembly includes a first thermally conductive mounting bracket 7 and a second thermally conductive mounting bracket 8. The two ends of the thermostat 5 are respectively fixed on the first thermally conductive mounting bracket 7. The fuse 6 is disposed between the first thermally conductive mounting bracket 7 and the second thermally conductive mounting bracket 8. One end of the fuse 6 is fixed on the first thermally conductive mounting bracket 7, and the other end of the fuse 6 is fixed on the second thermally conductive mounting bracket 8.

[0027] The first heat-conducting mounting base 7 is integrally provided with an upwardly protruding heat-conducting part 9. The thermostat 5 is in contact with the heat-conducting part 9, but the heat-conducting part 9 is not in contact with the heating element 4. The heat from the heating element 4 is transferred to the heat-conducting part 9 through the first heat-conducting mounting base 7. The thermostat 5 detects the temperature of the heat-conducting part 9, and then detects the temperature of the heating element 4. When the temperature of the heating element 4 is detected to be higher than the set temperature, the thermostat 5 disconnects the circuit of the heating element 4. When the temperature of the heating element 4 is lower than the set temperature, the thermostat 5 connects the circuit of the heating element 4, thereby realizing the adjustment and control of the water temperature of the heating pump. The temperature detection of the thermostat 5 is used when there is water in the water passage chamber 3. When the heating element 4 is heating, if there is no water in the water passage chamber 3, the temperature of the heating element 4 continues to rise, and the heat of the heating element 4 is directly transferred to the fuse 6. When the temperature of the heating element 4 is too high, the fuse 6 is disconnected to cut off the circuit of the heating pump and prevent dry burning.

[0028] A first fastener 10 is provided on the first heat-conducting mounting base 7 or the heat-conducting part 9. The first fastener 10 is located on both sides of the heat-conducting part 9. When the temperature requirement is more sensitive, the area of ​​the heat-conducting part 9 is enlarged and the first fastener 10 is directly installed on the heat-conducting part 9. A first mounting plate 11 is provided on the thermostat 5. A first mounting hole 12 is provided at both ends of the first mounting plate 11. After the first fastener 10 passes through the first mounting hole 12, a first locking member 13 is provided to fix the thermostat 5 on the first heat-conducting mounting base 7. The first fastener 10 is a screw, which is welded and fixed to the first heat-conducting mounting base 7. The first locking member 13 is a nut, which is threadedly connected to the screw, thereby locking the first mounting plate 11 on the screw, thus fixing the thermostat 5 on the first heat-conducting mounting base 7.

[0029] A second fastener 14 is provided at one end of the first heat-conducting mounting base 7, and a second mounting plate 15 is provided on the fuse 6. A second mounting hole 16 is provided at one end of the second mounting plate 15. After the second fastener 14 passes through the second mounting hole 16, a second locking member 17 is provided to fix one end of the fuse 6 on the first heat-conducting mounting base 7. A third fastener 18 is provided at one end of the second heat-conducting mounting base 8, and a third mounting hole 19 is provided at the other end of the second mounting plate 15. After the third fastener 18 passes through the third mounting hole 19, a third locking member 20 is provided to fix the other end of the fuse 6 on the second heat-conducting mounting base 8. The second fastener 14 and the third fastener 18 are screws, which are welded and fixed to the first heat-conducting mounting base 7 and the second heat-conducting mounting base 8, respectively. The second locking member 17 is a nut, which is threadedly connected to the screw, thereby locking the second mounting plate 15 onto the screw, thus fixing one end of the fuse 6 on the first heat-conducting mounting base 7 and the other end of the fuse 6 on the second heat-conducting mounting base 8.

[0030] The bottom of the first heat-conducting mounting base 7 is provided with a first plane 21, the bottom of the fuse 6 is provided with a second plane 22, and the heating component 4 is provided with a third plane 23. The first plane 21, the second plane 22 and the third plane 23 are respectively attached to each other so that the first heat-conducting mounting base 7 and the fuse 6 are respectively in contact with the heating component 4, which is conducive to heat transfer. The first plane 21 and the second plane 22 are welded to each other so that the first heat-conducting mounting base 7 is welded to the heating component 4. The bottom of the second heat-conducting mounting base 8 is provided with a sixth plane 30, the sixth plane 30 and the third plane 23 are attached to each other, and the sixth plane 30 and the third plane 23 are welded to each other so that the second heat-conducting mounting base 8 is welded to the heating component 4.

[0031] The thermostat 5 has a fourth plane 24 at its bottom and a fifth plane 25 on its heat-conducting part 9. The fourth plane 24 and the fifth plane 25 are in contact with each other so that the thermostat 5 is in contact with the heat-conducting part 9, which is conducive to heat transfer.

[0032] The pump cover 2 is provided with an annular mounting groove 26. The heating element 4 is annular and is installed in the mounting groove 26. The heating element 4 is welded and fixed in the mounting groove 26. The heating element 4 is a heating tube. The two sides of the heating element 4 are respectively inclined inward. The angle between the two sides of the heating element 4 is α, where α = 30° to 60°, preferably 46°. This structure can increase the contact area between the heating element 4 and the water, which is convenient for heating the water.

[0033] It also includes an inlet pipe 27 and an outlet pipe 28. The inlet pipe 27 is installed on the pump cover 2, and the outlet pipe 28 is installed on the pump casing 1. The inlet pipe 27, the water passage chamber 3, and the outlet pipe 28 are connected in sequence. An impeller 29 is installed in the water passage chamber 3. A motor (not shown in the figure) is installed in the pump casing 1. The motor drives the impeller 29 to rotate. When the impeller 29 rotates, external water enters the water passage chamber 3 through the inlet pipe 27. The heating component 4 heats the water in the water passage chamber 3, and then the hot water flows out of the heating pump through the outlet pipe 28.

[0034] A sealing ring 31 is provided between the pump housing 1 and the pump cover 2. The sealing ring 31 is located on the outside of the pump housing 1 and the pump cover 2, and the heating element 4 is located on the inside of the pump cover 2, so that the sealing ring 31 is away from the heating element 4 and the sealing ring 31 fails due to long-term contact with high temperature.

[0035] This heat pump is used as a washing pump in a dishwasher.

[0036] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heating pump, comprising a pump housing (1), a pump cover (2) covering the pump housing (1), and a heating element (4) disposed within the pump cover (2), wherein a water passage cavity (3) is formed between the pump housing (1) and the pump cover (2), characterized in that: It also includes a heat-conducting mounting base assembly, a thermostat (5) and a fuse (6). The heat-conducting mounting base assembly is fixed on the heating element (4), the thermostat (5) and the fuse (6) are fixed on the heat-conducting mounting base assembly, the heat-conducting mounting base assembly and the fuse (6) are in contact with the heating element (4) respectively, and the thermostat (5) is in contact with the heat-conducting mounting base assembly.

2. The heating pump according to claim 1, characterized in that: The thermally conductive mounting bracket assembly includes a first thermally conductive mounting bracket (7) and a second thermally conductive mounting bracket (8). The two ends of the thermostat (5) are respectively fixed on the first thermally conductive mounting bracket (7). The fuse (6) is disposed between the first thermally conductive mounting bracket (7) and the second thermally conductive mounting bracket (8). One end of the fuse (6) is fixed on the first thermally conductive mounting bracket (7), and the other end of the fuse (6) is fixed on the second thermally conductive mounting bracket (8).

3. The heating pump according to claim 2, characterized in that: The first heat-conducting mounting base (7) is integrally provided with an upwardly protruding heat-conducting part (9), the temperature controller (5) is in contact with the heat-conducting part (9), and the heat-conducting part (9) is not in contact with the heating component (4).

4. The heating pump according to claim 3, characterized in that: A first fastener (10) is provided on the first heat-conducting mounting base (7) or the heat-conducting part (9). The first fastener (10) is located on both sides of the heat-conducting part (9). A first mounting plate (11) is provided on the thermostat (5). A first mounting hole (12) is provided at both ends of the first mounting plate (11). After the first fastener (10) passes through the first mounting hole (12), a first locking member (13) is provided so that the thermostat (5) is fixed on the first heat-conducting mounting base (7).

5. The heating pump according to claim 2, characterized in that: A second fastener (14) is provided at one end of the first heat-conducting mounting base (7), and a second mounting plate (15) is provided on the fuse (6). A second mounting hole (16) is provided at one end of the second mounting plate (15). A second locking member (17) is provided after the second fastener (14) passes through the second mounting hole (16) so that one end of the fuse (6) is fixed on the first heat-conducting mounting base (7).

6. The heating pump according to claim 5, characterized in that: The second heat-conducting mounting base (8) has a third fastener (18) at one end and a third mounting hole (19) at the other end of the second mounting plate (15). The third fastener (18) passes through the third mounting hole (19) and then a third locking member (20) is provided so that the other end of the fuse (6) is fixed on the second heat-conducting mounting base (8).

7. The heating pump according to claim 3, characterized in that: The bottom of the first heat-conducting mounting base (7) is provided with a first plane (21), the bottom of the fuse (6) is provided with a second plane (22), and the heating component (4) is provided with a third plane (23). The first plane (21) and the second plane (22) are respectively in contact with the third plane (23).

8. The heating pump according to claim 3, characterized in that: The temperature controller (5) has a fourth plane (24) at the bottom and a fifth plane (25) on the heat-conducting part (9). The fourth plane (24) and the fifth plane (25) are in contact with each other.

9. The heating pump according to claim 1, characterized in that: The pump cover (2) is provided with an annular mounting groove (26), the heating component (4) is annular, and the heating component (4) is installed in the mounting groove (26); the two sides of the heating component (4) are respectively inclined inward, and the angle between the two sides of the heating component (4) is a, a=30°~60°.

10. The heating pump according to claim 1, characterized in that: It also includes an inlet pipe (27) and an outlet pipe (28). The inlet pipe (27) is installed on the pump cover (2), and the outlet pipe (28) is installed on the pump casing (1). The inlet pipe (27), the water passage chamber (3) and the outlet pipe (28) are connected in sequence. An impeller (29) is installed in the water passage chamber (3). A sealing ring (31) is provided between the pump housing (1) and the pump cover (2). The sealing ring (31) is located on the outside of the pump housing (1) and the pump cover (2), and the heating element (4) is located on the inside of the pump cover (2).

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