Refrigerant bracket positioning mechanism

Abstract

The present invention belongs to the field of water heater processing technology, and specifically relates to a positioning mechanism for a refrigerant bracket. The present invention aims to solve the problem of low efficiency and large error in the existing determination of the fixed position of the refrigerant bracket. The positioning mechanism of the refrigerant bracket of the present invention includes an axial positioning plate, a circumferential positioning plate and a welding positioning plate. A first welding positioning hole is provided on the welding positioning plate to correspond to the fixed position of the refrigerant bracket; an axial positioning port is provided on the axial positioning plate to accommodate the water inlet joint, thereby realizing the axial positioning of the first welding positioning hole; an arc-shaped positioning surface is provided on the circumferential positioning plate to fit with the outer surface of the water tank, thereby realizing the circumferential positioning of the first welding positioning hole, thereby realizing the determination of the fixed position of the refrigerant bracket, which is simple and convenient to operate with high efficiency; and is conducive to improving the installation accuracy of the refrigerant bracket, avoiding the refrigerant inlet or refrigerant outlet from being unable to pass through the outer shell, and improving the production efficiency and yield of the product.

Description

Technical Field

[0001] The invention belongs to the technical field of water heater processing, and particularly relates to a positioning mechanism of a refrigerant bracket. Background Art

[0002] A heat pump water heater uses a refrigerant to absorb low-temperature heat from the air and transfer that heat to a water tank to produce hot water. It primarily consists of a water tank, evaporator, compressor, expansion valve, and condenser. The condenser, which wraps around the water tank, has a refrigerant inlet and outlet. The inlet connects to the compressor, while the outlet connects to the expansion valve. The evaporator absorbs low-temperature heat from the surrounding air, vaporizing the refrigerant. The gaseous refrigerant is pressurized by the compressor and then enters the condenser, where it condenses into a liquid and releases heat, heating the water in the water tank. The liquid refrigerant then flows back to the evaporator through the expansion valve, repeating the cycle to heat the water in the tank.

[0003] A refrigerant bracket is typically fixed to the water tank, providing mounting space for the condenser's refrigerant inlet and outlet. These refrigerant inlet and outlet must pass through the heat pump water heater's casing to connect to the compressor and evaporator, respectively. Therefore, the refrigerant bracket's secure placement is crucial.

[0004] In the prior art, a ruler is used to measure and mark the surface of the water tank to determine the fixed position of the refrigerant bracket. However, this method is inefficient, has large errors, and low precision. This can cause the refrigerant inlet or outlet to interfere with the outer shell, preventing it from passing through, affecting product yield. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, that is, to solve the technical problems in the prior art of using a tool ruler to measure and mark on the surface of the water tank to determine the fixed position of the refrigerant bracket, which is low in efficiency, has large errors, low precision, and leads to low product yield, the present invention provides a positioning mechanism for the refrigerant bracket.

[0006] The positioning mechanism of the refrigerant bracket includes: an axial positioning plate, a circumferential positioning plate and a welding positioning plate; the welding positioning plate is provided with a first welding positioning hole, which corresponds to the fixed position of the refrigerant bracket; the axial positioning plate is provided with an axial positioning port, which is used to accommodate the water inlet joint of the water tank; the two ends of the circumferential positioning plate are respectively connected to the axial positioning plate and the welding positioning plate; the circumferential positioning plate is provided with an arc-shaped positioning surface, which is used to fit with the outer surface of the water tank.

[0007] In an optional technical solution of the positioning mechanism of the above-mentioned refrigerant bracket, the axial positioning plate includes a plate body and a connecting plate formed by bending one end of the plate body toward the water tank, the connecting plate is connected to the circumferential positioning plate, and the axial positioning port is provided on the plate body.

[0008] In an optional technical solution of the positioning mechanism of the above-mentioned refrigerant bracket, the axial positioning opening is an elongated strip-shaped opening extending in the axial direction to accommodate the water inlet connector and the sewage discharge connector of the water tank.

[0009] In the optional technical solution of the positioning mechanism of the above-mentioned refrigerant bracket, the plate body includes a first plate portion, a second plate portion and a third plate portion, the first plate portion and the second plate portion extend axially, and the first plate portion and the second plate portion are relatively arranged at the first end of the third plate portion, and the first plate portion, the third plate portion and the second plate portion are enclosed to form the axial positioning opening; the first plate portion and the second plate portion are provided with a transition arc at one end away from the third plate portion; the first end of the third plate portion is semicircular, and the second end of the third plate portion is connected to the connecting plate.

[0010] In an optional technical solution of the positioning mechanism of the above-mentioned refrigerant bracket, the side of the first plate portion away from the second plate portion is bent toward the water tank to form a first flange, and the side of the second plate portion away from the first plate portion is bent toward the water tank to form a second flange.

[0011] In an optional technical solution of the positioning mechanism of the refrigerant support, the circumferential positioning plate is an arc-shaped plate, and the inner arc surface of the arc-shaped plate is the arc-shaped positioning surface.

[0012] In an optional technical solution of the positioning mechanism of the refrigerant bracket, the ratio of the arc length of the arc-shaped plate to the circumference of the water tank is 1 / 3 to 1 / 2.

[0013] In the optional technical solution of the positioning mechanism of the above-mentioned refrigerant bracket, the welding positioning plate is provided with an arcuate surface, and the arcuate surface is used to fit with the outer surface of the water tank; the welding positioning plate is provided with a plurality of first welding positioning holes at one end away from the circumferential positioning plate, and the plurality of first welding positioning holes are arranged at intervals along the circumferential direction; the circumferential positioning plate is provided with a plurality of second welding positioning holes, and the plurality of second welding positioning holes are arranged at intervals along the circumferential direction.

[0014] In an optional technical solution of the positioning mechanism of the above-mentioned refrigerant bracket, two first welding positioning holes are provided, one of which is a waist-shaped hole, and the other is a circular hole; two second welding positioning holes are provided, one of which is a waist-shaped hole, and the other is a circular hole; the first welding positioning hole of the circular hole and the second welding positioning hole of the circular hole are axially opposite to each other, and the first welding positioning hole of the waist-shaped hole and the second welding positioning hole of the waist-shaped hole are axially opposite to each other.

[0015] In an optional technical solution of the positioning mechanism of the refrigerant bracket, the middle of the welding positioning plate protrudes outward to form a handle, and the handle is located between the first welding positioning hole and the circumferential positioning plate.

[0016] Those skilled in the art can understand that the positioning mechanism of the refrigerant bracket of the present invention includes an axial positioning plate, a circumferential positioning plate and a welding positioning plate, and a first welding positioning hole is provided on the welding positioning plate to correspond to the fixed position of the refrigerant bracket; an axial positioning port is provided on the axial positioning plate to accommodate the water inlet joint, thereby realizing axial positioning of the first welding positioning hole; an arc-shaped positioning surface is provided on the circumferential positioning plate for fitting with the outer surface of the water tank to realize circumferential positioning of the first welding positioning hole, thereby realizing the determination of the fixed position of the refrigerant bracket, which is simple and convenient to operate with high efficiency; and is conducive to improving the installation accuracy of the refrigerant bracket, avoiding the refrigerant inlet or refrigerant outlet from being unable to pass through the outer shell, and improving the production efficiency and yield of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following describes an optional embodiment of the positioning mechanism of the refrigerant support of the present invention with reference to the accompanying drawings.

[0018] Figure 1 Schematic diagram of the structure of the water tank and condenser provided by an embodiment of the present invention;

[0019] Figure 2 This is a structural schematic diagram of a positioning mechanism of a refrigerant support provided by an embodiment of the present invention installed on a water tank;

[0020] Figure 3 1 is a schematic structural diagram of a positioning mechanism of a refrigerant support provided in an embodiment of the present invention;

[0021] Figure 4 2 is a schematic structural diagram of the positioning mechanism of the refrigerant support provided by an embodiment of the present invention from another direction;

[0022] Figure 5 It is a front view of the positioning mechanism of the refrigerant bracket provided by an embodiment of the present invention.

[0023] In the accompanying drawings: 100: positioning mechanism; 110: axial positioning plate; 111: axial positioning opening; 112: connecting plate; 113: plate body; 1131: first plate portion; 1132: second plate portion; 1133: third plate portion; 1134: transition arc; 114: first flange; 115: second flange; 120: circumferential positioning plate; 121: arc-shaped positioning surface; 122a, 122b: second welding positioning holes; 130: welding positioning plate; 131a, 131b: first welding positioning holes; 132: arc-shaped surface; 140: handle; 141: grip; 142: connecting arm;

[0024] 200: water tank; 210: water inlet connector; 220: sewage connector; 230: water outlet connector;

[0025] 300: condenser; 310: header; 320: flat tube; 330: refrigerant inlet; 340: refrigerant outlet;

[0026] 400: Refrigerant bracket; 410: Mounting hole. DETAILED DESCRIPTION

[0027] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of the embodiments of the present invention and are not intended to limit the scope of protection of the embodiments of the present invention. Those skilled in the art may make adjustments as needed to adapt to specific application scenarios.

[0028] Secondly, it should be noted that in the description of the embodiments of the present invention, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0029] Furthermore, it should be noted that, in the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0030] A heat pump water heater primarily consists of a water tank, evaporator, compressor, expansion valve, and condenser. The condenser, which wraps around the water tank, has a refrigerant inlet and outlet. The inlet connects to the compressor, while the outlet connects to the expansion valve. The evaporator absorbs low-temperature heat from the surrounding air, vaporizing the refrigerant. The gaseous refrigerant is pressurized by the compressor and then enters the condenser, where it condenses into a liquid and releases heat, heating the water in the water tank. The liquid refrigerant then flows back to the evaporator through the expansion valve, repeating the cycle to heat the water in the tank.

[0031] Combine Figure 1 , Figure 1 : is a schematic structural diagram of a water tank and a condenser provided in an embodiment of the present invention. The water tank 200 is a cylindrical shell for storing water. A water inlet joint 210 is provided at the bottom end of the water tank 200 for connecting to a water inlet pipe to discharge cold water into the water tank 200; a sewage joint 220 is provided at the bottom of the water inlet joint 210 of the water tank 200 for connecting to a sewage pipe to discharge sewage from the water tank 200. The sewage joint 220 and the water inlet joint 210 are spaced apart along the axial direction of the water tank 200. Of course, a water outlet joint 230 is provided at the top end of the water tank 200 for connecting to a water outlet pipe to discharge hot water from the water tank 200.

[0032] The condenser 300 includes two headers 310 and several flat tubes 320. The flat tubes 320 extend circumferentially around the water tank 200, with multiple flat tubes 320 spaced axially along the water tank 200. The headers 310 extend axially along the water tank 200. The ends of the flat tubes 320 are connected to the two headers 310. The condenser 300 also has a refrigerant inlet 330 and a refrigerant outlet 340. The refrigerant inlet 330 allows the refrigerant, which has been pressurized by the compressor, to enter the condenser 300. The refrigerant outlet 340 allows the refrigerant, after heat exchange, to be discharged from the condenser 300 and returned to the evaporator through the expansion valve.

[0033] In order to fix the refrigerant inlet 330 and the refrigerant outlet 340 , the heat pump water heater is provided with a refrigerant bracket 400 . The refrigerant bracket 400 is fixed on the water tank 200 , and the refrigerant inlet 330 and the refrigerant outlet 340 are fixed on the refrigerant bracket 400 .

[0034] In one possible installation method for the refrigerant bracket 400, mounting holes 410 are provided on the refrigerant bracket 400. For example, two mounting holes 410 are provided at the upper end of the refrigerant bracket 400, and two mounting holes 410 are provided at the lower end of the refrigerant bracket 400. Screws are welded to the water tank 200, passed through the mounting holes 410, and connected to nuts, thereby securing the refrigerant bracket 400 to the water tank 200.

[0035] The welding position of the screws determines the position of the refrigerant inlet 330 and refrigerant outlet 340 on the refrigerant bracket 400. Conventional methods use a ruler to measure and mark the screw welding positions. This method is not only inefficient and affects the production efficiency of the heat pump water heater, but also has large errors and low precision, which can easily cause the refrigerant inlet or outlet to interfere with the housing and prevent them from passing through, affecting product yield.

[0036] In view of this, an embodiment of the present invention provides a positioning mechanism for a refrigerant bracket, wherein a welding positioning hole is provided on the positioning mechanism, corresponding to the welding position of the welding screw; the positioning mechanism realizes axial positioning of the welding positioning hole by providing an axial positioning port to abut against the water inlet joint on the water tank; the positioning mechanism realizes circumferential positioning of the welding positioning hole by providing an arc plate to fit with the cylindrical water tank, thereby determining the fixed position of the refrigerant bracket, which is simple and convenient to operate with high efficiency; and is conducive to improving the installation accuracy of the refrigerant bracket, avoiding the refrigerant inlet or refrigerant outlet from being unable to pass through the outer shell, and improving the production efficiency and yield of the product.

[0037] The following describes the preferred technical solution of the positioning mechanism of the refrigerant bracket according to the embodiment of the present invention in conjunction with the above-mentioned heat pump water heater.

[0038] Figure 2 This is a structural diagram of the positioning mechanism of the refrigerant bracket provided by an embodiment of the present invention installed on the water tank. Figure 3 1 is a schematic structural diagram of a positioning mechanism of a refrigerant support provided in an embodiment of the present invention; Figure 4 2 is a schematic structural diagram of the positioning mechanism of the refrigerant support provided by an embodiment of the present invention from another direction; Figure 5 It is a front view of the positioning mechanism of the refrigerant bracket provided by an embodiment of the present invention.

[0039] Combine Figure 2 The positioning mechanism 100 of the refrigerant support provided in the embodiment of the present invention includes an axial positioning plate 110 , a circumferential positioning plate 120 and a welding positioning plate 130 .

[0040] The axial positioning plate 110, the circumferential positioning plate 120, and the welded positioning plate 130 are connected to form an integral structure. Optionally, the axial positioning plate 110, the circumferential positioning plate 120, and the welded positioning plate 130 are integrally formed as a single piece, such as a single piece formed by stamping or casting, which is simple and convenient to process and has stable structural strength.

[0041] There are many positions for the axial positioning plate 110, the circumferential positioning plate 120 and the welding positioning plate 130. For example, Figure 2As shown, the ends of the circumferential positioning plate 120 are respectively connected to the axial positioning plate 110 and the welded positioning plate 130, that is, the circumferential positioning plate 120 is located between the axial positioning plate 110 and the welded positioning plate 130. For another example, the ends of the welded positioning plate 130 are respectively connected to the circumferential positioning plate 120 and the axial positioning plate 110, in which case the welded positioning plate 130 is located between the circumferential positioning plate 120 and the axial positioning plate 110. Those skilled in the art can make the desired arrangement based on the actual installation location of the water tank 200, the water inlet connector 210, and the refrigerant bracket 400.

[0042] It should be noted that the embodiments of the present invention are described using the example of a cylindrical water tank 200. However, this is not restrictive. For example, the cross-section of the water tank 200 may be elliptical, or the cross-section of the water tank 200 may be rectangular. The directions "circumferential" and "axial" in the embodiments of the present invention are to be understood broadly: "axial" refers to the vertical direction of the water tank 200 when installed, and "circumferential" refers to the direction perpendicular to the vertical direction. If the water tank 200 is a rectangular water tank, "axial" may refer to the longitudinal direction of the rectangular water tank, and "circumferential" refers to the circumference of the cross-section of the rectangular water tank perpendicular to the longitudinal direction.

[0043] Combine Figures 3 to 5 The axial positioning plate 110 of the embodiment of the present invention is provided with an axial positioning opening 111. The axial positioning opening 111 is used to accommodate the water inlet connector 210 of the water tank 200 and abuts against the water inlet connector 210 to achieve axial positioning. The axial positioning opening 111 can be an open opening as shown in the accompanying drawings, or a closed opening. The axial positioning opening 111 can be a circular opening, an elliptical opening, a rectangular opening, etc., and can also be a waist-shaped opening.

[0044] The circumferential positioning plate 120 is provided with an arcuate positioning surface 121, which is used to fit the outer surface of the water tank 200 to achieve circumferential positioning. The arc length of the arcuate positioning surface 121 is less than half the circumference of the water tank 200, which facilitates the disassembly and assembly of the refrigerant support positioning mechanism 100.

[0045] Optionally, the circumferential positioning plate 120 is a flat plate structure, and its side facing the water tank 200 is set as an arc-shaped positioning surface 121 for fitting with the outer surface of the water tank 200.

[0046] Optionally, the circumferential positioning plate 120 is an arc-shaped plate, and the inner arc surface of the arc-shaped plate is the arc-shaped positioning surface 121. This arrangement facilitates the positioning mechanism 100 to be manufactured by a stamping process, which has a simple manufacturing process and low cost.

[0047] Among them, the ratio of the arc length of the arc plate to the circumference of the water tank 200 is 1 / 3 to 1 / 2, which avoids the arc length of the arc plate being too small and causing inaccurate circumferential positioning. It can also avoid the arc length of the arc plate exceeding half of the circumference of the water tank 200, which makes it difficult to disassemble and assemble the positioning mechanism 100, thereby affecting production efficiency.

[0048] Combine Figure 5 The axial positioning opening 111 has an axial center line L, and the axial positioning plate 110 is symmetrical about the axial center line L. The arc-shaped plate can be symmetrical about the axial center line L, which is convenient for processing and installation and positioning.

[0049] The welding positioning plate 130 is provided with a first welding positioning hole 131 , which corresponds to the fixing position of the refrigerant bracket 400 , that is, the first welding positioning hole 131 corresponds to the welding position of the welding screw, thereby determining the installation position of the refrigerant bracket 400 .

[0050] Therefore, the positioning mechanism 100 of the refrigerant bracket of the embodiment of the present invention is to set a first welding positioning hole 131 on the welding positioning plate 130 to correspond to the fixed position of the refrigerant bracket 400; to set an axial positioning port 111 on the axial positioning plate 110 to accommodate the water inlet joint 210, thereby realizing the axial positioning of the first welding positioning hole 131; to set an arc-shaped positioning surface on the circumferential positioning plate 120 for fitting with the outer surface of the water tank 200, thereby realizing the circumferential positioning of the first welding positioning hole 131, thereby realizing the determination of the fixed position of the refrigerant bracket 400, which is simple and convenient to operate with high efficiency; and is conducive to improving the installation accuracy of the refrigerant bracket, avoiding the refrigerant inlet or refrigerant outlet from being unable to pass through the outer shell, and improving the production efficiency and yield of the product.

[0051] Continue to refer to Figure 3 and Figure 4 The axial positioning plate 110 provided in an embodiment of the present invention includes a plate body 113 and a connecting plate 112 formed by bending one end of the plate body 113 toward the water tank 200. The connecting plate 112 is connected to the circumferential positioning plate 120, and an axial positioning opening 111 is provided on the plate body 113. The plate body 113 can be a flat plate or an arc-shaped plate. There is a gap between the plate body 113 and the outer surface of the water tank 200. The connecting plate 112 and the plate body 113 have a predetermined angle. For example, the connecting plate 112 is perpendicular to the plate body 113. In this case, the axial positioning plate 110 is an L-shaped plate.

[0052] The plate body 113 of the axial positioning plate 110 of this embodiment is provided with an axial positioning opening 111, and one end of the plate body 113 is bent toward the water tank 200 to form a connecting plate 112 for connecting with the circumferential positioning plate 120, so that there is a gap between the plate body 113 and the surface of the water tank 200, thereby preventing the welding point of the water inlet joint 210 from affecting the positioning accuracy.

[0053] The plate body 113 is an axially extending long strip, and the axial positioning opening 111 is an axially extending long strip opening for accommodating the water inlet connector 210 and the sewage outlet connector 220 of the water tank 200. Since the water inlet connector 210 and the sewage outlet connector 220 are spaced apart in the axial direction, the axial positioning opening 111 is configured as an axially extending long strip, allowing it to accommodate both the water inlet connector 210 and the sewage outlet connector 220. This prevents the axial positioning plate 110 from rotating around the water inlet connector 210 and affecting axial positioning accuracy, thereby improving axial positioning accuracy. It also prevents the end of the plate body 113 from colliding with the sewage outlet connector 220, potentially causing scratches, or otherwise affecting the ease of installation of the positioning mechanism.

[0054] Continue to refer to Figure 3 and Figure 4 The plate body 113 includes a first plate portion 1131, a second plate portion 1132, and a third plate portion 1133. The first plate portion 1131 and the second plate portion 1132 extend axially and are disposed opposite each other at the first end of the third plate portion 1133. Thus, the first plate portion 1131, the third plate portion 1133, and the second plate portion 1132 enclose a U-shaped axial positioning opening 111. In this case, the axial positioning opening 111 is open, with a notch formed on the side opposite the third plate portion 1133.

[0055] A transition arc 1134 is provided at one end of the first plate portion 1131 and the second plate portion 1132 away from the third plate portion 1133 to prevent the sharp ends from scratching the surface of the water tank 200 or scratching the operator.

[0056] The first end of the third plate portion 1133 is semicircular, which facilitates contact with the outer circumference of the circular tubular water inlet connector 210 and improves positioning accuracy. The second end of the third plate portion 1133 is connected to the connecting plate 112 to achieve the connection between the plate body 113 and the connecting plate 112.

[0057] In this embodiment, a U-shaped axial positioning opening 111 is provided so that the axial positioning opening 111 can be sleeved on the outside of the water inlet joint 210 from the end of the water inlet joint 210. The axial positioning opening 111 can also be sleeved on the outside of the water inlet joint 210 from the side of the water inlet joint 210 by utilizing the notch, which is beneficial to improving the convenience of installation of the positioning mechanism 100 and improving production efficiency.

[0058] In this embodiment of the present invention, the side of the first plate portion 1131 away from the second plate portion 1132 is bent toward the water tank 200 to form a first flange 114. The first flange 114 can be perpendicular to the first plate portion 1131. The side of the second plate portion 1132 away from the first plate portion 1131 is bent toward the water tank 200 to form a second flange 115. The second flange 115 can be perpendicular to the second plate portion 1132. The second flange 115 is spaced apart from the first flange 114 and faces oppositely. One end of the second flange 115 and the first flange 114 can both be connected to the connecting plate 112.

[0059] In the embodiment of the present invention, the first flange 114 and the second flange 115 are provided to improve the structural strength of the plate body 113 , thereby preventing the plate body 113 from being deformed and affecting the positioning accuracy.

[0060] In some embodiments, the welding positioning plate 130 is provided with a curved surface 132, which is used to fit with the outer surface of the water tank 200, so that the welding positioning plate 130 is close to the outer surface of the water tank 200, making it convenient to mark the surface of the water tank 200 through the first welding positioning hole 131.

[0061] The end of the welding positioning plate 130 away from the circumferential positioning plate 120 is provided with a plurality of first welding positioning holes, and the plurality of first welding positioning holes are arranged at intervals along the circumferential direction. Figure 3 to Figure 5 As shown in FIG, the first welding positioning hole 131a and the first welding positioning hole 131b. Of course, the number of the first welding positioning holes is not limited to two. The first welding positioning holes can be circular holes, or can be oval holes, waist-shaped holes, rectangular holes, etc.

[0062] The circumferential positioning plate 120 is provided with a plurality of second welding positioning holes, and the plurality of second welding positioning holes are arranged at intervals along the circumference. Figures 3 to 5 As shown in FIG, the second welding positioning hole 122a and the second welding positioning hole 122b. Of course, the number of the second welding positioning holes is not limited to two. The second welding positioning holes can be circular holes, or can be oval holes, waist-shaped holes, rectangular holes, etc.

[0063] It is important to understand that in Figures 3 to 5 In the structure shown, the circumferential positioning plate 120 has a larger width in the axial direction, and the second welding positioning hole is provided on the circumferential positioning plate 120. Of course, the second welding positioning hole can also be provided at one end of the welding positioning plate 130 close to the circumferential positioning plate 120.

[0064] In this embodiment, a plurality of first welding positioning holes and a plurality of second welding positioning holes are provided to correspond to the plurality of mounting holes 410 provided on the refrigerant bracket 400 , thereby improving the accuracy of the installation of the refrigerant bracket 400 .

[0065] In one implementation, the first welding positioning hole 131a, the first welding positioning hole 131b, the second welding positioning hole 122a, and the second welding positioning hole 122b are arranged in a matrix, wherein the first welding positioning hole 131a and the second welding positioning hole 122b are arranged axially, and the first welding positioning hole 131b and the second welding positioning hole 122a are arranged axially.

[0066] Two first welding positioning holes are provided, for example, first welding positioning hole 131a and first welding positioning hole 131b. One of first welding positioning holes 131b is a waist-shaped hole, and the other first welding positioning hole 131a is a circular hole. By providing one of first welding positioning holes 131b as a waist-shaped hole, a margin is reserved for the welding screws, preventing multiple welding screws from being unable to simultaneously penetrate the mounting hole 410 of the refrigerant bracket 400.

[0067] Two second welding positioning holes are provided, for example, second welding positioning hole 122a and second welding positioning hole 122b. One second welding positioning hole 122a is a waist-shaped hole, and the other second welding positioning hole 122b is a circular hole. By providing one second welding positioning hole 122a as a waist-shaped hole, a margin is reserved for the welding screw, thereby preventing multiple welding screws from being unable to simultaneously penetrate the mounting hole 410 of the refrigerant bracket 400.

[0068] The first welding locating hole 131a of the circular hole and the second welding locating hole 122b of the circular hole are axially opposed to each other, while the first welding locating hole 131b of the waist-shaped hole and the second welding locating hole 122a of the waist-shaped hole are axially opposed to each other. Thus, the first welding locating hole 131a of the circular hole and the second welding locating hole 122a of the waist-shaped hole are diagonally opposed to each other, while the second welding locating hole 122b of the circular hole and the first welding locating hole 131b of the waist-shaped hole are diagonally opposed to each other. This arrangement conveniently reserves margin for welding screws in the diagonal direction, preventing multiple welding screws from being unable to simultaneously penetrate the mounting hole 410 of the refrigerant bracket 400.

[0069] To further enhance the ease of installation of the refrigerant bracket 400, two of the four mounting holes 410 on the refrigerant bracket 400 are circular, and the other two are waist-shaped. The circular mounting holes 410 correspond to the welding locating holes of the waist-shaped holes, and the waist-shaped mounting holes 410 correspond to the welding locating holes of the circular holes. This arrangement allows for a variable position for the screw welding, improves welding efficiency, and facilitates screw insertion into the mounting holes 410.

[0070] Continue to refer to Figure 3 and Figure 4The middle of the welding positioning plate 130 protrudes outward to form a handle 140, which is located between the first welding positioning hole 131b and the circumferential positioning plate 120. This arrangement can facilitate the disassembly and assembly of the positioning mechanism 100 and is convenient for stamping processing, with a simple structure and low cost.

[0071] The handle 140 may include a grip 141 spaced apart from the water tank 200 and connecting arms 142 connected to both ends of the grip 141. The connecting arms 142 are used to connect to the welding positioning plate 130. The connecting arms 142 are respectively perpendicular to the grip 141 and the welding positioning plate 130 to facilitate stamping processing.

[0072] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A positioning mechanism for a refrigerant bracket, characterized in that: include: Axial positioning plates, circumferential positioning plates and welding positioning plates; The welding positioning plate is provided with a first welding positioning hole, which corresponds to the fixed position of the refrigerant bracket; the fixed position is the welding position of the welding screw, and the welding screw is used to pass through the mounting hole of the refrigerant bracket and connect with the nut to fix the refrigerant bracket on the water tank; The axial positioning plate is provided with an axial positioning opening, which is used to accommodate the water inlet joint of the water tank and abuts against the water inlet joint to achieve axial positioning based on the water inlet joint; the axial positioning plate includes a plate body and a connecting plate formed by bending one end of the plate body toward the water tank, the connecting plate is connected to the circumferential positioning plate, and the plate body is provided with the axial positioning opening; the axial positioning opening is a long strip opening extending in the axial direction to accommodate the water inlet joint and the sewage discharge joint of the water tank; The two ends of the circumferential positioning plate are respectively connected to the axial positioning plate and the welding positioning plate; the circumferential positioning plate is provided with an arc-shaped positioning surface, and the arc-shaped positioning surface is used to fit with the outer surface of the water tank.

2. The positioning mechanism of the refrigerant support according to claim 1, characterized in that: The plate body includes a first plate portion, a second plate portion, and a third plate portion, wherein the first plate portion and the second plate portion extend axially, and the first plate portion and the second plate portion are oppositely arranged at a first end of the third plate portion, and the first plate portion, the third plate portion, and the second plate portion enclose the axial positioning opening; A transition arc is provided at one end of the first plate portion and the second plate portion away from the third plate portion; The first end of the third plate portion is semicircular, and the second end of the third plate portion is connected to the connecting plate.

3. The positioning mechanism of the refrigerant support according to claim 2, characterized in that: A side of the first plate portion away from the second plate portion is bent toward the water tank to form a first flange, and a side of the second plate portion away from the first plate portion is bent toward the water tank to form a second flange.

4. The positioning mechanism of the refrigerant support according to any one of claims 1 to 3, characterized in that: The circumferential positioning plate is an arc-shaped plate, and the inner arc surface of the arc-shaped plate is the arc-shaped positioning surface.

5. The positioning mechanism of the refrigerant support according to claim 4, characterized in that: The ratio of the arc length of the arc plate to the circumference of the water tank is 1 / 3 to 1 / 2.

6. The positioning mechanism of the refrigerant support according to any one of claims 1 to 3, characterized in that: The welding positioning plate is provided with an arcuate surface, and the arcuate surface is used to fit the outer surface of the water tank; the welding positioning plate is provided with a plurality of first welding positioning holes at one end away from the circumferential positioning plate, and the plurality of first welding positioning holes are arranged at intervals along the circumferential direction; A plurality of second welding positioning holes are provided on the circumferential positioning plate, and the plurality of second welding positioning holes are spaced apart along the circumferential direction.

7. The positioning mechanism of the refrigerant support according to claim 6, characterized in that: There are two first welding positioning holes, one of which is a waist-shaped hole, and the other is a circular hole; There are two second welding positioning holes, one of which is a waist-shaped hole, and the other is a circular hole; The first welding positioning hole of the circular hole and the second welding positioning hole of the circular hole are opposite to each other in the axial direction, and the first welding positioning hole of the waist-shaped hole and the second welding positioning hole of the waist-shaped hole are opposite to each other in the axial direction.

8. The positioning mechanism of the refrigerant support according to any one of claims 1 to 3, characterized in that: The middle of the welding positioning plate protrudes outward to form a handle, and the handle is located between the first welding positioning hole and the circumferential positioning plate.

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