Temperature sensing assembly and heat exchanger

Abstract

The utility model relates to the technical field of temperature detection devices, particularly provides a temperature sensing assembly and a heat exchanger, and aims to solve the problems of complex production process and high cost of a temperature measuring device of an elbow part of a heat exchanger in the prior art. In order to achieve the purpose, the temperature sensing assembly comprises a fixing part, a temperature measuring part and a temperature measuring unit, the fixing part is arc-shaped and is provided with a clamping groove, the temperature measuring part is connected with the arc-shaped outer wall of the fixing part, the temperature measuring part is provided with a temperature measuring cavity, and the temperature measuring unit is arranged in the temperature measuring cavity. By the adoption of the technical scheme, the fixing part can be made of low-price materials, mass production can be achieved, the fixing part can be better matched with an elbow of a heat exchanger, the fixing part can be suitable for both copper pipes and aluminum pipes, the manufacturing complexity of parts is reduced, connecting welding spots are reduced, the production process is greatly simplified, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature detection devices, and specifically provides a temperature sensing component and a heat exchanger. Background Art

[0002] Existing air conditioning heat exchangers generally use copper tubes / aluminum tubes as temperature sensing sleeves, which are welded to the elbows of the heat exchangers. The temperature sensing probe is inserted into the temperature sensing sleeve and then fixed with a clip or other fixing method, which not only adds multiple production processes but also increases production costs.

[0003] Accordingly, the art needs a new temperature measuring device to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the above technical problem, that is, to solve the problem of complex production process and high cost of the temperature measuring device of the elbow part of the heat exchanger in the prior art.

[0005] In a first aspect, the utility model provides a temperature sensing component, the temperature sensing component comprising:

[0006] A fixing part and a temperature measuring part, wherein the fixing part is arranged in an arc shape and is provided with a clamping groove, the temperature measuring part is connected to the arc-shaped outer wall of the fixing part, and the temperature measuring part is provided with a temperature measuring cavity;

[0007] A temperature measuring unit is arranged in the temperature measuring cavity.

[0008] In a specific embodiment having the above-mentioned temperature sensing component, the inner wall contour of the clamping groove abuts and cooperates with the side wall of the elbow to be measured.

[0009] In a specific embodiment having the above-mentioned temperature sensing component, the temperature measuring cavity is provided with an opening.

[0010] In a specific embodiment having the above-mentioned temperature sensing component, the temperature measuring part includes a cylindrical tube and a baffle, the baffle is arranged at both ends of the cylindrical tube to enclose the temperature measuring cavity, and the baffle partially blocks the two side ports of the cylindrical tube to form the opening.

[0011] In a specific embodiment having the above-mentioned temperature sensing component, the shielding area of ​​the baffle occupies half of the area of ​​the end of the cylindrical tube.

[0012] In a specific embodiment having the above-mentioned temperature sensing component, the temperature measuring part is a split structure.

[0013] In a specific embodiment having the above-mentioned temperature sensing component, the temperature measuring part includes at least two splicing units, at least two splicing units surround the temperature measuring cavity, and adjacent splicing units are detachably connected.

[0014] In a specific embodiment of the temperature sensing component, the central angle of the arc-shaped fixing portion ranges from 90° to 180°.

[0015] In a specific embodiment having the above-mentioned temperature sensing component, the central angle corresponding to the snap-fit ​​groove ranges from 210° to 300°.

[0016] The utility model further provides a heat exchanger, which comprises a heat exchange plate, an elbow connected to the heat exchange plate, and a temperature sensing component described in any one of the above schemes, wherein the fixing portion is arranged on the elbow.

[0017] Under the condition of adopting the above-mentioned technical scheme, the utility model discloses a temperature sensing component, in which the temperature measuring unit is installed in the temperature measuring cavity of the temperature measuring part, the temperature measuring part is connected to the fixing part, the shape of the fixing part is an arc matching the elbow to be measured temperature, and it is clamped on the elbow to be measured temperature through the clamping groove on the fixing part. By adopting the above-mentioned technical scheme, the fixing part can be made of low-cost materials and can be mass-produced, and can better adapt to the elbow of the heat exchanger, and can be applicable to both copper tubes and aluminum tubes, which reduces the complexity of the production of parts, reduces the connection welding points, greatly simplifies the production process, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0019] Figure 1 It is a schematic diagram of the structure of the welding sleeve on the elbow in the prior art;

[0020] Figure 2 This is a schematic diagram of the axonometric structure of the temperature sensing component in the utility model. Figure 1 , wherein the corresponding central angle of the fixing portion is shown;

[0021] Figure 3 This is a schematic diagram of the axonometric structure of the temperature sensing component in the utility model. Figure 2 , wherein the central angle corresponding to the snap-in groove of the fixing portion is shown;

[0022] Figure 4 The axonometric structure diagram of the temperature sensing component in the utility model is shown in FIG. Figure 3 , which shows the structure of the temperature measurement part.

[0023] Among them, 1. fixing part, 2. temperature measuring part, 3. clamping groove, 4. temperature measuring cavity, 5. temperature measuring unit, 6. opening, 7. cylindrical tube, 8. baffle, 9. splicing unit, 10. sleeve, 11. elbow. DETAILED DESCRIPTION

[0024] The preferred implementation modes of the present invention are described below with reference to the accompanying drawings and in combination with the temperature measurement scenario of the elbow of an air-conditioning heat exchanger. It should be understood by those skilled in the art that these implementation modes are only used to explain the technical principles of the present invention and are not used to limit the protection scope of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios. For example, although the specification describes the temperature measurement scenario of the elbow of an air-conditioning heat exchanger, this is not restrictive, and those skilled in the art can apply the present invention to any other heat transfer structure as needed, as long as the heat transfer structure needs to be measured to obtain its temperature change.

[0025] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, ordinal numbers such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Furthermore, in order to more clearly demonstrate the core technical solution of the present invention, the description of the known structure of the air-conditioning heat exchanger is omitted in the following description. However, this omission is only for the convenience of description and does not mean that the air-conditioning heat exchanger can be without these structures.

[0028] In order to better explain how the technical solution of the utility model solves the problems in the prior art, the prior art is described here. The air conditioner heat exchanger has a heat exchange plate, and the heat exchange plate is a heat exchange coil. The heat exchange coil is connected to form a loop through an elbow 11. The elbow 11 part can relatively accurately reflect the temperature of the internal refrigerant. Therefore, the temperature is generally detected at the elbow 11 part, such as Figure 1 As shown, the elbow 11 of the air-conditioning heat exchanger in the prior art is made of metal. In order to install a temperature probe, a sleeve 10 is welded on the elbow. However, welding the sleeve 10 adds multiple production steps and increases production costs. For mass production, it delays the production rhythm and affects production capacity.

[0029] like Figure 2-4 As shown, the utility model proposes a temperature sensing component, including a fixing part 1 and a temperature measuring part 2, wherein the fixing part 1 is arranged in an arc shape and is provided with a clamping groove 3, the temperature measuring part 2 is connected to the arc-shaped outer wall of the fixing part 1, and the temperature measuring part 2 is provided with a temperature measuring cavity 4; a temperature measuring unit 5, and the temperature measuring unit 5 is arranged in the temperature measuring cavity 4.

[0030] In this embodiment, the proposed temperature sensing component is divided into a fixed part 1, a temperature measuring part 2 and a temperature measuring unit 5. The temperature measuring part 2 is connected to the fixed part 1, and the temperature measuring unit 5 is installed inside the temperature measuring part 2; the fixed part 1 is used to be installed on the elbow of the air conditioner heat exchanger, and the temperature measuring part 2 is fixed thereto. Specifically, the fixed part 1 adopts an arc structure, which matches the arc of the elbow to be measured. On the one hand, the fixed part 1 can be installed more stably and firmly. On the other hand, the arc-shaped fixed part 1 is wrapped on the elbow to be measured, which can better transfer heat and facilitate temperature detection. A clamping groove 3 is provided on the fixed part 1, and the elbow is installed in the clamping groove 3 to achieve fixation. For example, the fixed part 1 can be made of low-density polyethylene material by injection molding, and the fixed part 1 has a certain deformation margin, so that the elbow is clamped into the clamping groove 3. It should be noted that the material of the fixed part 1 can be selected from other materials that can undergo a certain deformation so as to facilitate clamping on the elbow, and the arc of the fixed part 1 can match the installed elbow.

[0031] The temperature measuring part 2 is connected to the arc-shaped outer wall of the fixed part 1. The position where the temperature measuring part 2 is connected to the fixed part 1 is optional. The temperature measuring part 2 can be connected to the middle position of the fixed part 1, or it can be connected to the side position of the side wall of the fixed part 1. As long as the detection position of the temperature measuring unit 5 is close to the connection position between the temperature measuring part 2 and the fixed part 1, the temperature measuring unit 5 is closer to the elbow, and the detected temperature will be more accurate.

[0032] A temperature measuring cavity 4 is provided in the temperature measuring part 2, and a temperature measuring unit 5 is installed in the temperature measuring cavity 4. The temperature measuring unit 5 can be fixed in the temperature measuring cavity 4 by a buckle. The temperature measuring unit 5 can be prevented from slipping and falling in the temperature measuring cavity 4, and can also be prevented from being corroded by external moisture and reducing its service life. The temperature measuring unit 5 can use a temperature measuring probe as the temperature measuring part 2, and of course, other temperature measuring elements of thermocouple nature can also be used for temperature measurement.

[0033] On the basis of the above-mentioned embodiment, the inner wall profile of the clamping groove 3 is abutted and matched with the side wall of the elbow to be measured.

[0034] In this embodiment, the inner wall profile of the snap-in groove 3 is the same as the side wall profile of the temperature-measured elbow to achieve abutment fit. The outer wall of the elbow to be measured is a cylindrical surface, and the inner wall of the snap-in groove 3 is also a cylindrical surface, and the two are fitted together.

[0035] On the basis of the above embodiment, the temperature measuring cavity 4 is provided with an opening 6 .

[0036] In this embodiment, the temperature measuring chamber 4 is provided with an opening 6. When water accumulates in the temperature measuring chamber 4 due to liquefied water vapor due to long-term use, the opening 6 provided in the temperature measuring chamber 4 can effectively prevent water from accumulating in the tube, and the accumulated water flows out from the opening 6, thereby preventing the temperature measuring unit 5 from being damaged by long-term immersion in water.

[0037] In this embodiment, the position of the opening 6 can be selected. For example, the opening 6 can be set at both ends of the temperature measuring part 2, or on the side wall of the temperature measuring part 2. The opening 6 needs to be set at the lowest point of the temperature measuring cavity 4 in the temperature measuring part 2 so that the accumulated water inside can be discharged.

[0038] Based on the above embodiment, the temperature measuring part 2 includes a cylindrical tube 7 and a baffle 8. The baffle 8 is arranged at both ends of the cylindrical tube 7 to enclose the temperature measuring cavity 4. The baffle 8 partially blocks the two side ports of the cylindrical tube 7 to form the opening 6.

[0039] In this embodiment, the temperature measuring part 2 can take the form of a cylindrical tube 7, with through holes at both ends of the cylindrical tube 7. Baffles 8 are arranged on the through holes at both ends of the cylindrical tube 7. The baffles 8 cover part of the through holes, and the uncovered through holes form an opening 6. The baffles 8 at both ends and the cylindrical tube 7 form a temperature measuring cavity 4 for placing the temperature measuring unit 5. The temperature measuring unit 5 can be snap-connected to the body of the cylindrical tube 7 by a snap buckle, or it can be snap-connected to the baffle 8. The snap-connection position is not limited in this embodiment.

[0040] In this embodiment, the position where the baffle 8 is installed at the end of the cylindrical barrel 7 is not limited, and it is only necessary to block part of the port to form an opening 6 so that the accumulated water in the cylindrical barrel 7 can be discharged through the opening 6. The connection part between the cylindrical barrel 7 and the fixing part 1 is preferably in a center position, that is, the side wall of the middle position of the cylindrical barrel 7 is connected to the side wall position of the arc-shaped fixing part 1. The installation in the center position can make the temperature measuring component more standardly installed on the elbow to be measured. The temperature measuring unit 5 is installed in the middle position of the cylindrical barrel 7, and the installation position is more accurate, which helps to measure more accurate temperature.

[0041] It should be noted that the baffles 8 at both ends of the cylindrical barrel 7 can be installed in a detachable manner. When it is necessary to replace the temperature measuring unit 5 or clean the internal space of the cylindrical barrel 7, removing the baffles 8 can obtain a larger operating space and optimize maintenance work.

[0042] On the basis of the above embodiment, the shielding area of ​​the baffle 8 occupies half of the end area of ​​the cylindrical tube 7 .

[0043] In this embodiment, the area blocked by the baffle 8 accounts for half of the area of ​​the through hole at the end of the cylindrical tube 7, so that the through hole at the cylindrical end is in a semi-closed state. With the above structure, the size and area of ​​the baffle 8 and the opening 6 are comparable, which can not only play a protective role to prevent the temperature measuring unit 5 in the temperature measuring cavity 4 from falling and isolate it from the external environment to a certain extent, but also ensure that the size of the opening 6 can effectively drain the accumulated water, ensuring that there is no excessive water accumulation in the environment where the temperature measuring unit 5 is installed, which may cause the temperature measuring unit 5 to be damaged by water immersion.

[0044] In some possible embodiments, the temperature measuring part 2 is a split structure.

[0045] See also Figure 4 In this embodiment, the temperature measuring part 2 can also be a split structure. The interior of the temperature measuring part 2 is a temperature measuring cavity 4, and an opening 6 is left. The temperature measuring unit 5 is installed in the temperature measuring cavity 4. The temperature measuring part 2 adopts a split structure to facilitate the installation of the temperature measuring unit 5. The best installation position of the temperature measuring unit 5 can be intuitively seen, so that the temperature sensing end of the temperature measuring unit 5 corresponds to the position where the temperature measuring part 2 and the fixing part 1 are connected, thereby improving the accuracy of temperature measurement.

[0046] It should be noted that the temperature measuring part 2 adopts a split structure for detachability, and there is no restriction on the connection method between different parts, and a variety of connection methods can be adopted, such as plug-in, snap-in, etc. These connection methods not only ensure the stable connection between the various parts of the temperature measuring part 2, but also provide sufficient flexibility to adapt to different installation environments and needs. The plug-in method is usually suitable for occasions that require quick installation and disassembly, while the snap-in method is more suitable for applications that require higher connection strength and stability. By choosing a suitable connection method, the user can easily achieve quick connection and fixation between the temperature measuring part 2 and other parts of the device, ensuring the stability and reliability of the equipment.

[0047] In addition, the split structure design also allows users to make customized adjustments and optimizations according to actual needs. Users can choose appropriate components and connection methods according to different measurement requirements and working environments to achieve the best measurement results and performance. This customized design not only improves the applicability and flexibility of the equipment, but also provides users with more choices and possibilities.

[0048] On the basis of the above embodiment, the temperature measuring part 2 includes at least two splicing units 9, at least two splicing units 9 surround the temperature measuring cavity 4, and adjacent splicing units 9 are detachably connected.

[0049] See also Figure 4In this embodiment, the temperature measuring part 2 includes at least two splicing units 9 on the basis of the split structure. The actual number of splicing units 9 can be adaptively selected according to the installation needs. Taking the structure of the cylindrical tube 7 as an example, two splicing units 9 can be selected. The two splicing units 9 are respectively half-cylindrical structures. The two splicing units 9 are buckled together to form a cylindrical tube 7 structure, and the interior is surrounded by a temperature measuring cavity 4. Before buckling, the position of the temperature measuring unit 5 can be installed according to the position where the splicing unit 9 is connected to the fixed part 1. The opened installation space can make the installation position of the temperature measuring unit 5 closer to the connection between the splicing unit 9 and the fixed part 1, and the temperature measuring unit 5 can detect a more accurate temperature. After the temperature measuring unit 5 is fixed, the other part of the splicing unit 9 is buckled to form a complete temperature measuring part 2.

[0050] There is no limitation on the shape and snap-fit ​​connection method of the splicing unit 9, as long as the splicing unit 9 can form the temperature measuring cavity 4 through snap-fit ​​connection, the specific shape and number are selected according to actual installation requirements.

[0051] On the basis of the above-mentioned embodiment, the central angle of the arc-shaped fixing portion 1 is in the range of 90° to 180°.

[0052] See also Figure 2 In this embodiment, the fixing portion 1 adopts an arc structure that matches the shape of the elbow so that the fixing portion 1 can be more closely wrapped around the elbow. The central angle of the arc range that the fixing portion 1 can take is recorded as ∠1. The value range of ∠1 can be from 90° to 180°, 90° is the smallest wrapping range, and 180° is the largest wrapping range. The wrapping range can be selected according to the firmness of the wrapping.

[0053] Based on the above embodiment, the central angle of the engaging groove 3 is in the range of 210° to 300°.

[0054] See also Figure 3 In this embodiment, the clamping groove 3 is a structure opened on the fixing part 1 for clamping with the elbow to be measured. The complete fit between the clamping groove 3 and the elbow is the optimal clamping state. The inner wall of the clamping groove 3 fits with the outer wall of the elbow. The inner wall of the clamping groove 3 is a part of the cylindrical surface. The section perpendicular to the clamping groove 3 is a partial cylindrical tube 7 with a notch. The central angle corresponding to the bottom part of the clamping groove 3 is recorded as ∠2, and the value range of ∠2 is 210° to 300°. The appropriate notch size and the corresponding ∠2 size can be selected according to the thickness of the elbow, so as to achieve both easy installation and stable fixation on the elbow.

[0055] The utility model further provides a heat exchanger, which comprises a heat exchange plate, an elbow connected to the heat exchange plate, and a temperature sensing component described in any one of the above embodiments, wherein the fixing portion 1 is arranged on the elbow.

[0056] In this embodiment, a heat exchanger is also proposed, which includes a heat exchange plate. A plurality of heat exchange plates can be connected through an elbow to form a whole, and a passage is formed for the refrigerant to flow inside for heat exchange. A temperature sensing component is installed on the elbow to detect the temperature. When installing, the fixing part 1 is clamped on the elbow. It should be noted that the heat exchanger can be a heat exchanger for an air conditioner or a heat exchanger for other heat exchange equipment, and the temperature sensing component can be applicable.

[0057] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A temperature sensing component, characterized in that: The temperature sensing component comprises: A fixing part (1) and a temperature measuring part (2), wherein the fixing part (1) is arranged in an arc shape and is provided with a clamping groove (3), the temperature measuring part (2) is connected to the arc-shaped outer wall of the fixing part (1), and the temperature measuring part (2) is provided with a temperature measuring cavity (4); A temperature measuring unit (5), wherein the temperature measuring unit (5) is arranged in the temperature measuring cavity (4).

2. The temperature sensing component according to claim 1, characterized in that: The inner wall profile of the clamping groove (3) is in abutment with the side wall of the elbow to be measured.

3. The temperature sensing component according to claim 1, characterized in that: The temperature measuring cavity (4) is provided with an opening (6).

4. The temperature sensing component according to claim 3, characterized in that: The temperature measuring part (2) comprises a cylindrical tube (7) and a baffle (8), wherein the baffle (8) is arranged at both ends of the cylindrical tube (7) to enclose the temperature measuring cavity (4), and the baffle (8) partially blocks the two side ports of the cylindrical tube (7) to form the opening (6).

5. The temperature sensing component according to claim 4, characterized in that: The shielding area of ​​the baffle (8) accounts for half of the area of ​​the end of the cylindrical tube (7).

6. The temperature sensing component according to claim 3, characterized in that: The temperature measuring part (2) is a split structure.

7. The temperature sensing component according to claim 6, characterized in that: The temperature measuring part (2) comprises at least two splicing units (9), at least two of the splicing units (9) enclose the temperature measuring cavity (4), and adjacent splicing units (9) are detachably connected.

8. The temperature sensing component according to claim 2, characterized in that: The central angle corresponding to the arc-shaped fixing portion (1) ranges from 90° to 180°.

9. The temperature sensing component according to claim 2, characterized in that: The central angle corresponding to the clamping groove (3) ranges from 210° to 300°.

10. A heat exchanger, characterized in that: The heat exchanger comprises a heat exchange plate, an elbow connected to the heat exchange plate, and the temperature sensing component according to any one of claims 1 to 9, and the fixing portion (1) is arranged on the elbow.

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