Temperature measuring structure and heat pump water heater

Abstract

The utility model relates to temperature measurement structure and heat pump water heater, temperature measurement structure includes: temperature measurement joint for installing on the lateral wall of water tank, one end of temperature measurement joint is equipped with first positioning structure, temperature measurement elbow, temperature measurement elbow can pass temperature measurement joint, one end of temperature measurement elbow is equipped with second positioning structure, second positioning structure and first positioning structure plug -in cooperation, and be used for limiting temperature measurement elbow relative temperature measurement joint rotation. Through temperature measurement structure is set to include temperature measurement joint and temperature measurement elbow, through the plug -in cooperation of first positioning structure and second positioning structure can realize the rotation of temperature measurement elbow relative temperature measurement joint is limited, so that temperature measurement joint and temperature measurement elbow splice after, the orientation of temperature measurement elbow is fixed, through adjusting the position of temperature measurement joint relative water tank, temperature measurement elbow can be set down after extending into water tank, need not extra set flange structure, structure is relatively simple, cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of hot water supply equipment technology, and in particular to a temperature measuring structure and a heat pump water heater. Background Technology

[0002] Heat pump water heaters use a temperature sensor installed inside the water tank to read the water temperature and adjust the system and mode accordingly. Generally, the temperature sensor is installed inside a temperature measuring tube, which is inserted into the water tank to read the temperature.

[0003] When a heat pump water heater uses a double-convex inner tank (both the top and bottom covers bulge outwards), there are two existing methods for measuring the bottom water temperature of the tank. One method uses a straight temperature measuring tube, which requires opening holes and welding pipe ends on the bottom end cover of the tank, making processing difficult and expensive. The other method uses a bent temperature measuring tube, which requires a flanged pipe end to ensure that the bent temperature measuring tube faces downwards during assembly. It also requires a protrusion on the outside of the tank, which is then assembled with the four corners of the flange using screws. This method requires sophisticated equipment, involves many parts, and is costly. Utility Model Content

[0004] The first technical problem solved by this utility model is to provide a temperature measuring structure that effectively solves the problems of high equipment requirements, numerous parts, and high cost when using a temperature measuring bend to measure the bottom water temperature of a water tank in the prior art.

[0005] The second technical problem solved by this utility model is to provide a heat pump water heater that effectively solves the problem that the use of a temperature measuring bend in the prior art to measure the bottom water temperature of the water tank has high equipment requirements, many parts, and high cost.

[0006] The first technical problem mentioned above is solved by the following technical solution: A temperature measuring structure, the temperature measuring structure comprising: A temperature measuring connector is used to install on the outer wall of a water tank, and the end of the temperature measuring connector away from the water tank is provided with a first positioning structure; A temperature measuring bend is provided, which can pass through the temperature measuring connector. One end of the temperature measuring bend is provided with a second positioning structure. The second positioning structure is inserted and engaged with the first positioning structure and is used to restrict the rotation of the temperature measuring bend relative to the temperature measuring connector.

[0007] Compared with the prior art, the temperature measuring structure of this utility model has the following advantages: by setting the temperature measuring structure to include a temperature measuring connector and a temperature measuring bend, the rotation of the temperature measuring bend relative to the temperature measuring connector can be restricted through the insertion and cooperation of the first positioning structure and the second positioning structure, so that the orientation of the temperature measuring bend is fixed after the temperature measuring connector and the temperature measuring bend are spliced. By adjusting the position of the temperature measuring connector relative to the water tank, the temperature measuring bend can be set downward after being inserted into the water tank. There is no need to set up additional flanges or other structures, the structure is simple and the cost is low.

[0008] In one embodiment, both the first positioning structure and the second positioning structure have matching straight edges. In one embodiment, the first positioning structure is a positioning hole with a straight edge, and the second positioning structure is a positioning ring with a straight edge, wherein the positioning ring is inserted into the positioning hole.

[0009] In one embodiment, the outline of the positioning hole is composed of an arc-shaped side and a straight side, and the outer outline of the positioning ring is composed of an arc-shaped side and a straight side.

[0010] In one embodiment, the temperature measuring structure includes: A fastening connector is fixedly connected to the end of the temperature measuring connector away from the water tank. In one embodiment, the temperature measuring structure includes: A sealing element is provided between the temperature measuring connector and the fastening connector. In one embodiment, the seal is provided with a third positioning structure, and the second positioning structure is provided with a fourth positioning structure on the side near the seal, the fourth positioning structure being connected to the third positioning structure. And / or, the fastening joint is provided with a mounting groove, and the sealing element is disposed in the mounting groove.

[0011] In one embodiment, the temperature measuring structure includes a temperature sensor; The temperature measuring bend is hollow, and the fastening joint and the sealing element are respectively provided with through holes that are connected to each other. The temperature sensor enters the temperature measuring bend through the through holes.

[0012] The second technical problem mentioned above is solved by the following technical solution: A heat pump water heater includes a water tank, and a temperature measuring hole is provided on the side wall of the water tank; It also includes the aforementioned temperature measuring structure, wherein the temperature measuring connector is fixedly connected to the temperature measuring hole.

[0013] Compared with the prior art, the water tank of this utility model has the following advantages: by setting a temperature measuring hole on the side wall of the water tank, and fixing the temperature measuring connector at the temperature measuring hole, the temperature measuring connector and the temperature measuring bend can be connected by a first positioning structure and a second positioning structure to restrict the rotation of the temperature measuring bend relative to the temperature measuring connector. After the temperature measuring connector and the temperature measuring bend are spliced, the orientation of the temperature measuring bend is fixed. By adjusting the position of the temperature measuring connector relative to the water tank, the temperature measuring bend can be set downward after being inserted into the water tank. There is no need to set up additional flanges or other structures. The structure is simple and the cost is low.

[0014] In one embodiment, the bottom of the temperature measuring hole has a horizontally arranged straight edge; The temperature measuring connector has a positioning boss at one end near the temperature measuring hole. The positioning boss has a straight edge, and the straight edge of the positioning boss is parallel to the straight edge of the first positioning structure and located on the same side of the temperature measuring connector. The positioning boss is inserted into the temperature measuring hole. The temperature measuring bend includes a bent section and a straight section. The second positioning structure is located at the end of the straight section away from the bent section. The center of the bent section is located below the straight side of the second positioning structure. When the bent section passes through the temperature measuring connector and extends into the temperature measuring hole, the center of the bent section is coplanar with the axis of the temperature measuring hole. Attached Figure Description To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a partial exploded view of a heat pump water heater according to an embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of section A; Figure 3 This is a schematic diagram of the temperature measuring connector. Figure 4 This is a schematic diagram of the sealing element. Figure 5 This is a partial sectional view of the water tank; Figure 6 for Figure 5 A magnified view of part B in the middle section.

[0016] Explanation of reference numerals in the attached figures: 1. Temperature measuring connector; 101. First positioning structure; 102. Positioning boss; 2. Temperature measuring bend; 201. Second positioning structure; 2011. Fourth positioning structure; 3. Fastening connector; 4. Sealing element; 401. Third positioning structure; 5. Temperature sensor; 6. Water tank; 601. Temperature measuring hole. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0019] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0022] According to an embodiment of the present invention, in one aspect, a temperature measuring structure is provided, the temperature measuring structure comprising: Temperature measuring connector 1 is used to be installed on the outer wall of water tank 6. The end of temperature measuring connector 1 away from water tank 6 is provided with a first positioning structure 101. Temperature measuring bend 2 can pass through temperature measuring connector 1. One end of temperature measuring bend 2 is provided with second positioning structure 201. Second positioning structure 201 is inserted and cooperates with first positioning structure 101 and is used to restrict the rotation of temperature measuring bend 2 relative to temperature measuring connector 1.

[0023] By setting the temperature measuring structure to include a temperature measuring connector 1 and a temperature measuring bend 2, the rotation of the temperature measuring bend 2 relative to the temperature measuring connector 1 can be restricted through the insertion and cooperation of the first positioning structure 101 and the second positioning structure 201. This ensures that the orientation of the temperature measuring bend 2 is fixed after the temperature measuring connector 1 and the temperature measuring bend 2 are spliced ​​together. By adjusting the position of the temperature measuring connector 1 relative to the water tank 6, the temperature measuring bend 2 can be set downwards after being inserted into the water tank 6. No additional flanges or other structures are required, resulting in a simpler structure and lower cost.

[0024] like Figure 1 As shown, the temperature measuring bend 2 includes a curved section and a straight section, and the second positioning structure 201 is located at the end of the straight section away from the curved section.

[0025] like Figure 2 As shown, both the first positioning structure 101 and the second positioning structure 201 have matching straight edges, specifically, the straight edges are located at the bottom. This arrangement allows for the insertion and engagement of the first positioning structure 101 and the second positioning structure 201 by aligning their straight edges when assembling the temperature measuring bend to the temperature measuring connector. Simultaneously, the straight section of the temperature measuring bend 2 can abut against the straight edge, thus restricting the rotation of the temperature measuring bend 2 relative to the temperature measuring connector 1.

[0026] like Figure 1 As shown, the first positioning structure 101 is a positioning hole with a straight edge, and the second positioning structure 201 is a positioning ring with a straight edge, the positioning ring being inserted into the positioning hole. Alternatively, in a different implementation, the first positioning structure 101 may be a positioning ring, and the second positioning structure 201 may be a positioning hole.

[0027] Specifically, the outline of the positioning hole consists of an arc-shaped edge and a straight edge, and the outer outline of the positioning ring also consists of an arc-shaped edge and a straight edge. The arc-shaped edge of the positioning hole corresponds to the arc-shaped edge of the positioning ring, and the straight edge of the positioning hole corresponds to the straight edge of the positioning ring, as shown below. Figure 1 As shown. As an alternative implementation, both the first positioning structure 101 and the second positioning structure 201 can be pentagonal or other shapes, as long as they can restrict the rotation of the temperature measuring bend 2 relative to the temperature measuring connector 1. During assembly, the first positioning structure 101 and the second positioning structure 201 are fitted with a clearance fit. This arrangement facilitates positioning and allows for easy adjustment of the orientation of one end of the temperature measuring bend 2 inside the water tank 6, thereby facilitating the assembly of the temperature measuring bend 2 to the temperature measuring connector 1.

[0028] like Figure 1 As shown, the temperature measuring structure includes: a fastening connector 3, which is fixedly connected to the end of the temperature measuring connector 1 away from the water tank 6.

[0029] Specifically, the fastening connector 3 is a nut, and the outer side of the temperature measuring connector 1 is threaded, with the fastening connector 3 and the temperature measuring connector 1 being threadedly connected. As an alternative implementation, the fastening connector 3 and the temperature measuring connector 1 can also be fixedly connected in other ways, without much restriction here.

[0030] like Figure 1 As shown, the fastening connector 3 is a hexagonal nut, which facilitates tightening. Of course, in other embodiments, the fastening connector 3 may be other types of nuts.

[0031] like Figure 1 and Figure 5 As shown, the temperature measuring structure includes: The sealing element 4 is located between the temperature measuring connector 1 and the fastening connector 3.

[0032] Specifically, the seal 4 is a silicone sealing ring. As an alternative implementation, the seal 4 may be other forms of sealing structure.

[0033] In one embodiment, the fastening connector 3 has a mounting groove, and the sealing element 4 is disposed within the mounting groove. Specifically, the silicone sealing ring is circular, and the mounting groove is a circular recess. By designing a circular recess inside the nut, the silicone sealing ring can be first inserted into the nut, and then fixed by the circular recess, so that the silicone sealing ring and the nut are assembled as a whole. As an alternative implementation, the silicone sealing ring and the mounting groove can also be other shapes that match the shape; no further limitations are imposed here. like Figure 4 and Figure 6 As shown, the seal 4 is provided with a third positioning structure 401, and the second positioning structure 201 is provided with a fourth positioning structure 2011 on the side near the seal 4. The fourth positioning structure 2011 is connected to the third positioning structure 401.

[0034] Specifically, the third positioning structure 401 is a protrusion, and the fourth positioning structure 2011 is a groove, with the protrusion inserted into the groove for mutual connection.

[0035] like Figure 1 As shown, the temperature measuring structure includes a temperature sensor 5; The temperature measuring bend 2 is hollow, and the fastening joint 3 and the sealing element 4 are respectively provided with through holes that are connected to each other. The temperature sensor 5 enters the temperature measuring bend 2 through the through holes.

[0036] During assembly, the temperature measuring connector 1 can be welded to the side wall of the water tank 6, and the temperature measuring bend 2 can be assembled onto the temperature measuring connector 1 with a clearance fit. Then, the silicone sealing ring can be assembled onto the hexagonal nut, and the hexagonal nut with the silicone sealing ring can be assembled onto the temperature measuring connector 1 by thread engagement. Finally, the temperature sensor 5 for measuring water temperature can be inserted into the temperature measuring bend 2.

[0037] According to an embodiment of the present invention, another aspect is provided: a heat pump water heater, including a water tank 6, wherein a temperature measuring hole 601 is provided on the side wall of the water tank 6; It also includes the aforementioned temperature measuring structure, with the temperature measuring connector 1 fixedly connected to the temperature measuring hole 601.

[0038] like Figure 1 As shown, the bottom of the temperature measuring hole 601 has a horizontally set straight edge; like Figure 2 As shown, the temperature measuring connector 1 has a positioning boss 102 at one end near the temperature measuring hole 601. The positioning boss 102 has a straight edge, and the straight edge of the positioning boss 102 is parallel to the straight edge of the first positioning structure 101 and located on the same side of the temperature measuring connector 1. The positioning boss 102 is inserted into the temperature measuring hole 601. The temperature measuring bend 2 includes a bent section and a straight section. The second positioning structure 201 is located at the end of the straight section away from the bent section. The center of the bent section is below the straight edge of the second positioning structure 201. When the bent section passes through the temperature measuring connector 1 and extends into the temperature measuring hole 601, the center of the bent section is coplanar with the axis of the temperature measuring hole 601.

[0039] By setting the temperature measuring hole 601 to have a horizontally positioned straight edge, the end of the temperature measuring connector 1 near the temperature measuring hole 601 is provided with a positioning boss 102 for alignment. The positioning boss 102 has a straight edge, and during assembly, the semi-circular straight edge can be directly aligned with the straight edge to achieve positioning and alignment, which is convenient to operate. After aligning the positioning boss 102 and the temperature measuring hole 601, the temperature measuring connector 1 can be welded to the outer wall of the water tank 6, which is convenient to assemble. Meanwhile, by setting the center of the curved section of the temperature measuring tube 2 below the straight edge of the second positioning structure 201, and after the curved section passes through the temperature measuring connector 1 and extends into the temperature measuring hole 601, the center of the curved section is coplanar with the axis of the temperature measuring hole 601, so that the curved section itself is set downwards. Since the first positioning structure 101 and the second positioning structure 201 are both asymmetrical structures, and the semi-circular straight edge is set at the bottom, when assembling the temperature measuring tube 2 into the water tank 6, the first positioning structure 101 and the second positioning structure 201 can only be inserted by setting the curved section of the temperature measuring tube 2 downwards. At this time, the curved section of the temperature measuring tube 2 is set towards the bottom of the water tank 6, which ensures that the temperature measuring tube 2 measures the temperature of the bottom of the water tank 6.

[0040] Of course, in other embodiments, the end of the temperature measuring hole 601 and the temperature measuring connector 1 near the temperature measuring hole 601 can also be set as a positioning structure of other shapes that match the shape, without too much limitation here.

[0041] In actual operation, the temperature measuring structure can be assembled in water tank 6 according to the following steps: First, a temperature measuring hole 601 is made on the side wall of the water tank 6. At the same time, a positioning boss 102 is designed on one end of the temperature measuring connector 1. The straight edge of the positioning boss 102 is aligned with the straight edge of the temperature measuring hole 601. The temperature measuring connector 1 and the temperature measuring hole 601 on the side wall of the water tank 6 are positioned. The temperature measuring connector 1 is inserted into the water tank 6 and then welded to the side wall of the water tank 6. The other end of the temperature measuring connector 1 is provided with a first positioning structure 101, and the head of the temperature measuring bend 2 is also designed with a matching second positioning structure 201. The bent section of the temperature measuring bend 2 is inserted into the temperature measuring connector 1 and extends into the water tank 6. The second positioning structure 201 on the straight section of the temperature measuring bend 2 is engaged with the first positioning structure 101, forming a positioning through a clearance fit, ensuring that the bent section of the temperature measuring bend 2 faces downwards within the water tank 6. Figure 5 As shown; The hexagonal nut has a circular groove inside. The silicone sealing ring is inserted into the hexagonal nut and fixed by the circular groove, so that the silicone sealing ring and the hexagonal nut form a whole structure. A hexagonal nut with a silicone sealing ring is assembled onto the temperature measuring connector 1 by means of thread engagement. The silicone sealing ring is designed with a protrusion, and the temperature measuring bend 2 is provided with a groove. The protrusion and the groove cooperate with each other. The hexagonal nut and the temperature measuring connector 1 are engaged in place by thread engagement, which compresses the silicone sealing ring, causing the silicone sealing ring to deform and form an interference fit to achieve the sealing effect. Finally, insert the temperature sensor 5 into the temperature measuring bend 2.

[0042] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0043] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A temperature measuring structure, characterized in that, The temperature measuring structure includes: A temperature measuring connector (1) is used to be installed on the outer wall of the water tank (6). The end of the temperature measuring connector (1) away from the water tank (6) is provided with a first positioning structure (101). Temperature measuring bend (2), the temperature measuring bend (2) can pass through the temperature measuring connector (1), one end of the temperature measuring bend (2) is provided with a second positioning structure (201), the second positioning structure (201) is inserted and cooperated with the first positioning structure (101), and is used to restrict the temperature measuring bend (2) from rotating relative to the temperature measuring connector (1).

2. The temperature measuring structure according to claim 1, characterized in that: Both the first positioning structure (101) and the second positioning structure (201) have matching straight edges.

3. The temperature measuring structure according to claim 2, characterized in that: The first positioning structure (101) is a positioning hole with a straight edge, and the second positioning structure (201) is a positioning ring with a straight edge, wherein the positioning ring is inserted into the positioning hole.

4. The temperature measuring structure according to claim 3, characterized in that: The outline of the positioning hole is composed of an arc-shaped side and a straight side, and the outer outline of the positioning ring is composed of an arc-shaped side and a straight side.

5. The temperature measuring structure according to any one of claims 1-4, characterized in that: The temperature measuring structure includes: Fastening connector (3) is fixedly connected to the end of the temperature measuring connector (1) away from the water tank (6).

6. The temperature measuring structure according to claim 5, characterized in that: The temperature measuring structure includes: A sealing element (4) is provided between the temperature measuring connector (1) and the fastening connector (3).

7. The temperature measuring structure according to claim 6, characterized in that: The sealing element (4) is provided with a third positioning structure (401), and the second positioning structure (201) is provided with a fourth positioning structure (2011) on the side of the sealing element (4) near the second positioning structure (201). The fourth positioning structure (2011) is connected to the third positioning structure (401). And / or, the fastening joint (3) is provided with an installation groove, and the sealing element (4) is provided in the installation groove.

8. The temperature measuring structure according to claim 6, characterized in that: The temperature measuring structure includes a temperature sensor (5); The temperature measuring bend (2) is hollow, and the fastening joint (3) and the sealing element (4) are respectively provided with through holes that are connected to each other. The temperature sensor (5) enters the temperature measuring bend (2) through the through holes.

9. A heat pump water heater, characterized in that: Includes a water tank (6), and a temperature measuring hole (601) is provided on the side wall of the water tank (6). It also includes a temperature measuring structure according to any one of claims 1-8, wherein the temperature measuring connector (1) is fixedly connected to the temperature measuring hole (601).

10. The heat pump water heater according to claim 9, characterized in that: The bottom of the temperature measuring hole (601) has a horizontally set straight edge; The temperature measuring connector (1) has a positioning boss (102) at one end near the temperature measuring hole (601). The positioning boss (102) has a straight edge. The straight edge of the positioning boss (102) is parallel to the straight edge of the first positioning structure (101) and located on the same side of the temperature measuring connector (1). The positioning boss (102) is inserted into the temperature measuring hole (601). The temperature measuring bend (2) includes a bent section and a straight section. The second positioning structure (201) is located at the end of the straight section away from the bent section. The center of the bent section is located below the straight side of the second positioning structure (201). When the bent section passes through the temperature measuring connector (1) and extends into the temperature measuring hole (601), the center of the bent section is coplanar with the axis of the temperature measuring hole (601).

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