Heat pump with integrated control module

Abstract

The present invention discloses a heat pump with an integrated control module, comprising a pump body, wherein a heating chamber and a pump body chamber are provided in the pump body, a heater device is provided in the heating chamber, the heater device comprises a metal heating tube and a stainless steel plate, an insulating sleeve is provided between the metal heating tube and the pump body; two heating tube positioning through holes are vertically provided on the stainless steel plate, both ends of the metal heating tube are provided with heating tube bending parts, and the upper end of each heating tube bending part is provided through the aligned heating tube positioning through holes, and the metal heating tube is welded and fixed to the stainless steel plate; a water inlet pipe mounting part is provided on the stainless steel plate, the water inlet pipe mounting part is eccentrically arranged, and a water inlet joint is integrally provided on the outer end surface of the stainless steel plate aligned with the position of the water inlet pipe mounting part, and a water inlet pipe anti-detachment protrusion is integrally provided on the outer end of the water inlet joint. The above technical solution has a reasonable structural design, a compact structure, a small overall size, a good heating effect and good practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a heat pump with an integrated control module. Background Art

[0002] At present, when the existing dishwasher is working, a washing pump and a heating system are usually used. The heating system generally adopts a disc heater for heating. The existing dishwasher heating system still has some shortcomings: 1. The heating pipe is arranged in the groove of the steel plate (shell), and the steel plate is connected to the pump body. The heating section of the heating pipe is a single-ring structure. The heating pipe is welded and fixed close to the steel plate. After assembly, the heating pipe is not heated in the center of the pump body, which affects the heating effect and leads to poor heating effect; 2. The heating section of the heating pipe has a large diameter and is close to the inner side of the steel plate (shell) during installation. The axial space of the heating pipe is not fully utilized, which makes the overall radial size of the heater large and has poor practicality. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a heat pump with an integrated control module that has a reasonable structural design, a compact structure, a small overall size, good heating effect and good practicality.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a heat pump with an integrated control module, comprising a pump body, wherein a heating chamber and a pump body chamber are provided within the pump body, a heater device is provided within the heating chamber, the heater device comprises a metal heating tube and a stainless steel plate, an insulating sleeve is provided between the metal heating tube and the pump body, and the insulating sleeve separates the heating chamber and the pump body chamber;

[0005] Two heating tube positioning through holes are vertically provided on the stainless steel plate. Both ends of the metal heating tube are provided with heating tube bending parts, and the upper end of each heating tube bending part is passed through the aligned heating tube positioning through holes. The metal heating tube is fixed to the stainless steel plate by welding.

[0006] The stainless steel plate is provided with a water inlet pipe mounting portion, which is eccentrically arranged. The outer end surface of the stainless steel plate is integrally provided with a water inlet joint aligned with the position of the water inlet pipe mounting portion, and the outer end of the water inlet joint is integrally provided with a water inlet pipe anti-detachment protrusion.

[0007] The present invention is further configured as follows: an impeller is provided in the pump body chamber of the pump body, a rotor shaft is fixedly provided in the middle of the impeller, a water seal, an upper bearing, a rotor assembly, a lower bearing and an end cover are sequentially sleeved on the rotor shaft from top to bottom, a stator assembly is sleeved on the rotor assembly, and the stator assembly and the pump body are fixed by screws; a lower bearing chamber is provided in the end cover, and a corrugated gasket is provided in the lower bearing chamber.

[0008] The present invention is further configured as follows: a sealing ring chamber and a bearing chamber are provided in the pump body, and the sealing ring chamber and the bearing chamber are integrally formed.

[0009] The present invention is further configured as follows: the impeller is a closed impeller, the impeller consists of 6 twisted blades and a blade end plate, the twisted blades and the blade end plate are arranged non-vertically; wherein, the twisted blades adopt a Bezier curve structure, the twist curvature of the edge curve of the blade inlet ranges from 90° to 145°, and the maximum twist curvature of the blade end plate streamline is 105° to 150°.

[0010] The present invention is further configured as follows: a drive board, a power board and a protective cover are provided at the lower end of the end cover, and the protective cover is fixed to the stator assembly by a snap connection or by a screw connection; a connector is provided between the power board and the drive board, and the power board and the drive board are connected by a connector, and the power board and the protective cover are fixed by screws.

[0011] The present invention is further configured as follows: a water inlet pipe is sleeved on the water inlet joint, and a clamp is sleeved on the lower end of the water inlet pipe.

[0012] The present invention is further configured as follows: an O-ring is provided between the upper end of the pump body and the stainless steel plate, and the pump body and the stainless steel plate are connected by riveting.

[0013] The present invention is further configured such that: the impeller is fixed to the upper end of the rotor shaft via a threaded connection.

[0014] The present invention is further configured as follows: three lead pins are provided at the lower end of the stator assembly, one end of the drive plate is welded to the three lead pins, and the other end of the drive plate is pressed by a protective cover; thermal conductive silicone is provided between the drive plate and the end cover.

[0015] The present invention is further configured such that: four mounting buckles are integrally provided on the pump body in the circumferential direction.

[0016] The beneficial effects of the present invention are: compared with the prior art, the present invention has a reasonable structural arrangement, the water inlet pipe mounting portion of the stainless steel plate is an eccentric structure, which makes the structure more compact and meets the requirements of a small pump heating system, the metal heating pipe is welded and fixed to the stainless steel plate, and the heating section of the metal heating pipe is a spiral structure, which meets the high-efficiency heating requirements in a smaller space and has a good heating effect; in addition, a positioning protrusion is provided on the inner side of the stainless steel plate, and the positioning protrusion is close to the heating pipe, the welding is more firm, the service life is long, and the practicality is good.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0019] Figure 2 This is a schematic structural diagram of a pump body according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic structural diagram of a heating device according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic structural diagram of a stainless steel plate according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic structural diagram of a metal heating tube according to an embodiment of the present invention;

[0023] Figure 6 Schematic diagram of the structure of the stator assembly according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic structural diagram of a pump body according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the assembly of a power board and a connector according to an embodiment of the present invention;

[0026] Figure 9 A schematic diagram of a partial structure of an embodiment of the present invention;

[0027] Figure 10 This is a schematic structural diagram of a protective cover according to an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of a flow channel according to an embodiment of the present invention;

[0029] Figure 12 This is a schematic structural diagram of an impeller according to an embodiment of the present invention;

[0030] Figure 13 Schematic diagram of the structure of the blade according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, these terms should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0032] See also Figures 1 to 13The present invention discloses a heat pump with an integrated control module, comprising a pump body 1, wherein a heating chamber and a pump body chamber are provided in the pump body 1, a heater device 2 is provided in the heating chamber, and the heater device 2 comprises a metal heating tube 21 and a stainless steel plate 22, and an insulation sleeve 3 is provided between the metal heating tube 21 and the pump body 1, and the insulation sleeve 3 separates the heating chamber and the pump body chamber;

[0033] Two heating tube positioning through holes 221 are vertically provided on the stainless steel plate 22. Both ends of the metal heating tube 21 are provided with heating tube bending portions 211, and the upper end of each heating tube bending portion 211 is passed through the aligned heating tube positioning through holes 221. The metal heating tube 21 is welded and fixed to the stainless steel plate 22.

[0034] The stainless steel plate 22 is provided with a water inlet pipe mounting portion 222, which is eccentrically arranged. The outer end surface of the stainless steel plate 22 is integrally provided with a water inlet joint 223 aligned with the position of the water inlet pipe mounting portion, and the outer end of the water inlet joint 223 is integrally provided with a water inlet pipe anti-detachment protrusion 224.

[0035] Preferably, magnesium powder is filled in the metal heating tube 21. The heating section of the metal heating tube 21 is a spiral structure. The metal heating tube 21 is a spiral tube type, wound multiple times to achieve high power. Under the same power, the diameter of the multi-turn heating tube is much smaller than that of the single-turn heating tube, which makes the outer diameter of the entire module smaller and easier to install in a small space.

[0036] The pump body 1 is provided with guide ribs, and the heat insulating sleeve 3 is installed in the pump body 1 along the guide ribs; the metal heating tube 21 and the pump body 1 are separated by the heat insulating sleeve 3 to separate the heating chamber and the pump body chamber, so that the metal heating tube 21 does not affect the performance of the pump, and the efficiency of the separated pump body is improved.

[0037] The inner end surface of the stainless steel plate 22 is provided with a positioning protrusion 225, and the positioning protrusion 225 is welded and fixed to the metal heating tube 21. The edge of the stainless steel plate 22 is integrally provided with a pump body connecting assembly portion 226.

[0038] In order to make the structure of the present invention more reasonable, it is preferred that an impeller 4 is provided in the pump body chamber of the pump body 1 described in this embodiment, a rotor shaft 5 is fixedly provided in the middle of the impeller 4, and a water seal 6, an upper bearing 7, a rotor assembly 8, a lower bearing 9 and an end cover 10 are sequentially sleeved on the rotor shaft 5 from top to bottom, a stator assembly 11 is provided on the outer sleeve of the rotor assembly 8, and the stator assembly 11 and the pump body 1 are fixed by screws; a lower bearing chamber is provided in the end cover 10, and a corrugated gasket 12 is provided in the lower bearing chamber.

[0039] Preferably, the thermal insulation sleeve 3 is provided with a groove, and the thermal insulation sleeve 3 and the impeller 4 form a labyrinth seal;

[0040] The pump body 1 is provided with a sealing ring chamber 19 and a bearing chamber 110 . The sealing ring chamber 19 and the bearing chamber 110 are integrally formed, which can better ensure concentricity and precision in structure and improve the waterproof performance of the pump body.

[0041] The impeller 4 is a closed impeller, which consists of 6 twisted blades 401 and a blade end plate 402. The twisted blades 401 and the blade end plate 402 are arranged non-vertically. The twisted blades adopt a Bezier curve structure, the twist curvature of the edge curve L at the blade inlet ranges from 90° to 145°, and the maximum twist curvature of the blade end plate streamline H is 105° to 150°.

[0042] A drive plate 13, a power plate 14 and a protective cover 15 are provided at the lower end of the end cover 10. The protective cover 15 is fixed to the stator assembly 11 by a snap connection or by screws; a connector 16 is provided between the power plate 14 and the drive plate 13, and the power plate 14 and the drive plate 13 are connected by the connector 16. The power plate 14 and the protective cover 15 are fixed by screws, and the stator assembly 11 is interference fit.

[0043] The end cover 10 also has the function of dissipating heat for the chip of the driving board 13 .

[0044] The water inlet joint 223 is sleeved with a water inlet pipe 17, and the lower end of the water inlet pipe 17 is sleeved with a clamp 18. After the water inlet joint 223 is sleeved with the water inlet pipe 17, it is locked and fixed with the clamp 18.

[0045] An O-ring 23 is provided between the upper end of the pump body 1 and the stainless steel plate 22 , and the pump body 1 and the stainless steel plate 22 are connected by riveting.

[0046] The impeller 4 is fixed to the upper end of the rotor shaft 5 through threaded connection.

[0047] Three lead pins are provided at the lower end of the stator assembly 11 , one end of the drive plate 13 is welded to the three lead pins, and the other end of the drive plate 13 is pressed by a protective cover 15 ; thermal conductive silicone is provided between the drive plate 13 and the end cover 10 .

[0048] The pump body 1 is integrally provided with four mounting buckles 100 in the circumferential direction, which can meet the installation requirements of different customers. At the same time, they are equivalent to reinforcing ribs to improve the strength of the pump body.

[0049] The power board 14 is connected to the user connection end via a connector, which is easy to plug and unplug.

[0050] The capacitors of the power board 14 are placed horizontally, and the power board 14 is slotted so that the capacitors are sunken, making the structure more compact.

[0051] In actual application, the water inlet pipe installation part of the stainless steel plate is an eccentric structure, which makes the structure more compact and meets the requirements of small pump heating systems. The metal heating pipe is welded and fixed to the stainless steel plate, and the heating section of the metal heating pipe is a spiral structure, which meets the high-efficiency heating requirements in a smaller space and has a good heating effect. In addition, a positioning protrusion is provided on the inner side of the stainless steel plate. The positioning protrusion is close to the heating pipe, which makes the welding more firm, has a long service life, and is practical.

[0052] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A heat pump with an integrated control module, comprising a pump body (1), wherein a heating chamber and a pump body chamber are provided in the pump body (1), characterized in that: A heater device (2) is provided in the heating chamber, the heater device (2) comprising a metal heating tube (21) and a stainless steel plate (22), a heat insulating sleeve (3) is provided between the metal heating tube (21) and the pump body (1), and the heating chamber and the pump body chamber are separated by the heat insulating sleeve (3); Two heating tube positioning through holes (221) are vertically provided on the stainless steel plate (22), heating tube bending portions (211) are provided at both ends of the metal heating tube (21), and the upper end of each heating tube bending portion (211) is passed through the aligned heating tube positioning through holes (221), and the metal heating tube (21) is fixed to the stainless steel plate (22) by welding; The stainless steel plate (22) is provided with a water inlet pipe mounting portion (222), which is eccentrically arranged. The outer end surface of the stainless steel plate (22) is integrally provided with a water inlet joint (223) aligned with the position of the water inlet pipe mounting portion, and the outer end of the water inlet joint (223) is integrally provided with a water inlet pipe anti-detachment protrusion (224); An impeller (4) is provided in the pump chamber of the pump body (1), a rotor shaft (5) is fixedly provided in the middle of the impeller (4), a water seal (6), an upper bearing (7), a rotor assembly (8), a lower bearing (9) and an end cover (10) are sequentially sleeved on the rotor shaft from top to bottom, a stator assembly (11) is sleeved on the rotor assembly (8), and the stator assembly (11) and the pump body (1) are fixed by screw connection; a lower bearing chamber is provided in the end cover (10), and a corrugated gasket (12) is provided in the lower bearing chamber; A sealing ring chamber (19) and a bearing chamber (110) are provided in the pump body (1), and the sealing ring chamber (19) and the bearing chamber (110) are integrally formed; The impeller (4) is a closed impeller, and is composed of six twisted blades (401) and a blade end plate (402), wherein the twisted blades adopt a Bezier curve structure, the twist curvature of the edge curve (L) at the blade inlet ranges from 90° to 145°, and the maximum twist curvature of the blade end plate streamline (H) is from 105° to 150°; A drive plate (13), a power plate (14) and a protective cover (15) are provided at the lower end of the end cover (10), and the protective cover (15) is fixed to the stator assembly (11) by a snap connection or a screw connection; a connector (16) is provided between the power plate (14) and the drive plate (13), and the power plate (14) and the drive plate (13) are connected by the connector (16), and the power plate (14) and the protective cover (15) are fixed by screw connection; The water inlet joint (223) is sleeved with a water inlet pipe (17), and the lower end of the water inlet pipe (17) is sleeved with a clamp (18); An O-ring (23) is provided between the upper end of the pump body (1) and the stainless steel plate (22), and the pump body (1) and the stainless steel plate (22) are connected by riveting; The impeller (4) is fixed to the upper end of the rotor shaft (5) via a threaded connection; The lower end of the stator assembly (11) is provided with three lead pins, one end of the drive plate (13) is welded to the three lead pins, and the other end of the drive plate (13) is pressed by a protective cover (15); a heat-conducting silica gel is provided between the drive plate (13) and the end cover (10); Four mounting buckles (100) are integrally provided on the pump body (1) in the circumferential direction.

Images