Heat dissipating member mounting structure and deep-well pump

Abstract

The utility model relates to the technical field of controller heat dissipation, specifically relates to a heat dissipation piece mounting structure and deep well pump, the heat dissipation piece mounting structure includes cylinder, heat dissipation piece and support piece, wherein, the heat dissipation piece sets up in the cylinder, the support piece is used for supporting the inner wall of heat dissipation piece and cylinder, the support piece can adjust its length between heat dissipation piece and the inner wall of cylinder, to brace the heat dissipation piece, the heat dissipation piece mounting structure provided by the utility model is braced by adjusting the support piece to heat dissipation piece, and compared with prior art, has low cost, convenient installation, occupies small space etc.

Description

Technical Field

[0001] This utility model relates to the field of controller heat dissipation technology, specifically to a heat dissipation component mounting structure and a deep well pump. Background Technology

[0002] A deep well pump is a device used in deep well water extraction, farmland irrigation, and industrial water supply. Its core components include a motor and a controller that controls the motor's operation. During operation, the electronic components in the controller generate a large amount of heat, thus requiring a heat dissipation structure.

[0003] Because deep well pumps are located underwater, air cooling is not feasible; heat is typically dissipated directly through conduction from the water outside the pump housing. However, the circuit board in the controller has a planar structure, making it difficult to directly mount it inside the circular-section pump housing. Furthermore, since the circuit board cannot fit against the inner wall of the pump housing, heat cannot be transferred outwards through the housing in a timely manner. Therefore, existing technologies generally require specialized heat sinks for controller installation and heat conduction.

[0004] For example, utility model patent CN219999871U, entitled "A Submersible Heat Dissipation Structure," discloses an installation structure for a heat dissipation component. This structure includes a fixing ring located on the inner wall of the outer cylinder for mounting the heat dissipation component, which can be axially slidably installed. After installation, one side of the heat dissipation component fits against the inner wall of the outer cylinder, while the other side has a Z-shaped protrusion that interferes with the Z-shaped locking groove on the fixing ring. This installation structure has certain problems: 1. The structure of the outer cylinder and the heat dissipation component is complex, resulting in high processing costs; 2. The interference fit between the fixing ring on the inner wall of the outer cylinder and the heat dissipation component makes installation inconvenient, and axial adjustment during installation is also difficult; 3. The fixing ring on the inner wall of the outer cylinder also occupies some internal space, reducing the space reserved for the controller. Components on the controller must be installed away from this fixing ring; or the size of the outer cylinder needs to be increased. Utility Model Content

[0005] This utility model addresses the technical problems of high cost, inconvenient installation, and large space occupation in the installation structure of heat sinks in the prior art. It proposes a heat sink installation structure that tightens the heat sink by adjusting the support component. Compared with the prior art, it has the characteristics of low cost, convenient installation, and small space occupation.

[0006] The technical solution of this utility model: A heat sink mounting structure, comprising: cylindrical body; A heat dissipation component is disposed inside the cylinder; A support member is provided for supporting the heat sink and the inner wall of the cylinder. The support member is adjustable in length between the heat sink and the inner wall of the cylinder to tighten the heat sink.

[0007] Furthermore, one end of the support member is threaded into the heat sink, and the other end of the support member is used to press against the inner wall of the cylinder.

[0008] Furthermore, the support member is a bolt.

[0009] Furthermore, the shank of the bolt is also connected to a locking element.

[0010] Furthermore, the locking element is a nut, which is threadedly connected to the shank of the bolt.

[0011] Furthermore, one side of the heat sink is formed as a support surface, and the support member is provided on the other side of the heat sink; the inner wall of the cylinder is formed with opposing first support portion and second support portion, the first support portion is in abutting contact with the support surface of the heat sink, and the second support portion is in abutting contact with the support member.

[0012] Furthermore, there are two support members, which are respectively located near both ends of the heat sink.

[0013] Furthermore, the other side of the heat sink is also used to mount a heating element; the heating element is a controller.

[0014] Furthermore, the cylinder is filled with adhesive.

[0015] In another aspect, this utility model provides a deep well pump, including a heat dissipation component mounting structure as described in any one of the above.

[0016] After adopting the above technical solution, the heat sink mounting structure and deep well pump provided by this utility model have the following beneficial effects compared with the prior art: First, the structure of the cylinder and the structure of the heat sink can be simplified, without the need for a complex bayonet structure, and the processing cost of the parts is low; second, the heat sink is tightened by the support, so there is no installation resistance caused by interference fit during installation, and the axial front and rear position of the heat sink can be easily adjusted during installation; moreover, since there is no space-consuming fixing ring in the cylinder, more space is reserved for the controller, and the overall structure is more compact and small in size. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the heat dissipation component and the support component of this utility model; Figure 2 This is a schematic diagram of the heat sink mounting structure of this utility model from a first-view perspective; Figure 3 This is a schematic diagram of the heat sink mounting structure of this utility model from a second perspective. Figure 4 This is a cross-sectional view of the heat dissipation component mounting structure (including the sealing seat) of this utility model; Figure 5 This is a perspective view of the heat sink mounting structure (including the sealing seat) of this utility model.

[0018] in, 1. Cylinder body; 2. Heat dissipation component; 21. Support surface; 22. Mounting surface; 221. Threaded hole; 222. Mounting hole; 3. Support component; 4. Locking component; 5. Sealing seat; 51. Sealing ring; 6. Pressure plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0022] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0023] Example 1:

[0024] like Figure 1-4 As shown, this embodiment provides a heat sink mounting structure, which includes a cylindrical body 1, a heat sink 2, and a support member 3. The cylindrical body 1 is preferably cylindrical, with openings at both ends and an internal accommodating space. The heat sink 2 can be disposed within the accommodating space of the cylindrical body 1. Both the heat sink 2 and the cylindrical body 1 are preferably made of materials with good thermal conductivity, such as, but not limited to, aluminum alloy or stainless steel.

[0025] Furthermore, the support member 3 is used to support the heat sink 2 and the inner wall of the cylinder 1. The length of the support member 3 between the heat sink 2 and the inner wall of the cylinder 1 can be adjusted. For example, before installing the heat sink 2, the length of the support member 3 between the heat sink 2 and the inner wall of the cylinder 1 can be adjusted to be shorter, so that the heat sink 2 can be easily inserted from one end of the cylinder 1; after the heat sink 2 is inserted, the length of the support member 3 between the heat sink 2 and the inner wall of the cylinder 1 can be increased until one end of the support member 3 presses against the inner wall of the cylinder 1 and the other end presses against the heat sink 2, thereby tightening the heat sink 2.

[0026] Thus, compared with the prior art, the heat sink mounting structure provided in this embodiment simplifies the structure of the cylinder 1 and the heat sink 2, eliminating the need for complex bayonet structures. Specifically, no fixing ring is required inside the cylinder 1, and the Z-shaped protrusion is unnecessary on the heat sink 2, resulting in lower manufacturing costs. Secondly, the heat sink 2 is secured by the support member 3, eliminating installation resistance caused by interference fits and facilitating easy adjustment of the axial position of the heat sink 2 during installation. Furthermore, since there is no space-consuming fixing ring inside the cylinder 1, more space is reserved for the controller, resulting in a more compact and smaller overall structure.

[0027] To facilitate adjustment of the support member 3, this embodiment sets one end of the support member 3 to be threaded into the heat sink 2. For example, an external thread is provided at one end of the support member 3, and a corresponding threaded hole 221 is provided on the heat sink 2. The other end of the support member 3 is used to press against the inner wall of the cylinder 1. Before installation, the support member 3 is rotated in a first direction, causing the support member 3 to move towards the heat sink 2 and embed itself into the heat sink 2. After the heat sink 2 is installed, the support member 3 can be rotated in a second direction opposite to the first direction, causing the support member 3 to move away from the heat sink 2 and gradually extend out of the heat sink 2, thereby pressing the heat sink 2 against it. Preferably, the support member 3 is a bolt, including a shank and a head. The shank is threaded, and the head is used to support the inner wall of the cylinder 1. Since bolts are commonly used fasteners, using a bolt as the support member 3 can greatly reduce costs.

[0028] Of course, in other embodiments, the support member 3 can also adopt other structures, such as an elastic clamping pin, one end of which is a spring and the other end is a pin. The spring is compressed before installation, and then released after the heat sink 2 is placed into the cylinder 1 to allow the spring to return to its original position. The spring provides the clamping force, with one end of the spring clamping the pin, the pin clamping the inner wall of the cylinder 1, and the other end of the spring clamping the heat sink 2. A hole can be made in the heat sink 2 to limit the spring and the pin, so that they can only move in a direction perpendicular to the upper plane of the heat sink 2. Alternatively, any other structure can be used to adjust the clamping distance between the heat sink 2 and the inner wall of the cylinder 1.

[0029] Furthermore, this embodiment also includes a locking member 4 connected to the shank of the bolt. Since the inner wall of the cylinder 1 is circular, when the bolt head is near or in contact with the inner wall of the cylinder 1, the wrench may touch the cylinder 1, making it inconvenient to continue tightening the bolt. To address this, this embodiment connects a locking member 4 to the shank of the bolt. The locking member 4 can be threadedly connected to the shank of the bolt, so that by tightening the locking member 4, the bolt head is further rotated, ultimately locking the bolt. The portion of the bolt shank near the head needs to have sufficient threads to allow the locking member 4 to be tightened. The locking member 4 is preferably a nut that mates with the bolt; since nuts are also common fasteners, this reduces costs.

[0030] Of course, in other embodiments, a locking member 4 can also be fixedly installed on the shank of the bolt, for example by welding. When the locking member 4 is rotated, it can directly drive the bolt to rotate. However, this will increase the cost.

[0031] like Figure 2 and 4As shown, one side of the heat sink 2 is formed as a support surface 21, and the other side of the heat sink 2 is provided with the support member 3. The inner wall of the cylinder 1 has opposing first and second support portions. The first support portion is in abutting contact with the support surface 21 of the heat sink 2, and the support surface 21 is preferably an arc surface that conforms to the shape of the first support portion and fits snugly against it. The second support portion is in abutting contact with the head of the support member 3. It should be noted that the first and second support portions can be in predetermined positions, or they can be formed naturally during the installation of the heat sink 2.

[0032] Preferably, two support members 3 are provided, respectively located near the two ends of the heat sink 2; thus, the stability during support can be increased by using two support members 3, and the support members 3 can be conveniently operated from both ends of the cylinder 1 by being located near the two ends of the heat sink 2.

[0033] In this embodiment, the other side of the heat sink 2 is also formed as a mounting surface 22, which has a plurality of mounting holes 222 for mounting a heating element (not shown in the figure). The heating element is preferably a controller. The heat generated by the controller during operation can be transferred to the cylinder 1 through the heat sink 2, and then transferred to the outside to exchange heat with the external water, thereby achieving heat dissipation.

[0034] In this embodiment, the internal filling treatment of the cylinder 1 involves filling with silicone or resin, preferably covering the entire controller. This serves two purposes: firstly, it protects the controller and its components; secondly, it secures the heat sink 2 and the controller. Before installing the heat sink 2 into the cylinder 1, the controller can be installed on the heat sink 2. Then, this entire assembly is placed into the cylinder 1, and the support 3 is adjusted to achieve pre-fixation. The tension only needs to ensure that the heat sink 2 does not move when the cylinder 1 is placed vertically (one opening upwards and one opening downwards). Then, the filling treatment can be performed. A sealing seat 5 also needs to be installed at the bottom opening.

[0035] As can be seen from the above, the heat sink mounting structure provided in this embodiment, which tightens the heat sink by adjusting the support, has the advantages of low cost, convenient installation and small space occupation compared with the prior art.

[0036] Example 2:

[0037] This embodiment provides a deep well pump, including a heat dissipation component mounting structure as described in Embodiment 1. Figure 5As shown, the deep well pump includes a cylinder 1 and a sealing seat 5 located at one end, i.e., the bottom, of the cylinder 1. The sealing seat 5 is preferably sealed to the cylinder 1 using double sealing rings 51. The power cord of the controller can be led out from the sealing seat 5, preferably from the side, and is sealed and pressed tightly by a pressure plate 6 in conjunction with a rubber ring. The other end of the cylinder 1 can be connected to a motor housing. The power cord supplies power to the controller, which is electrically connected to and controls the motor assembly inside the motor housing to operate.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heat sink mounting structure, characterized in that, include: Cylinder (1); Heat dissipation component (2), wherein the heat dissipation component (2) is disposed inside the cylindrical body (1); Support member (3) is used to support the heat sink (2) and the inner wall of the cylinder (1). The support member (3) can adjust its length between the inner wall of the heat sink (2) and the inner wall of the cylinder (1) to tighten the heat sink (2).

2. The heat sink mounting structure according to claim 1, characterized in that, One end of the support member (3) is threaded into the heat sink member (2), and the other end of the support member (3) is used to press against the inner wall of the cylinder (1).

3. The heat sink mounting structure according to claim 2, characterized in that, The support member (3) is a bolt.

4. The heat sink mounting structure according to claim 3, characterized in that, The bolt shank is also connected to a locking element (4).

5. The heat sink mounting structure according to claim 4, characterized in that, The locking element (4) is a nut, which is threadedly connected to the shank of the bolt.

6. The heat sink mounting structure according to claim 1, characterized in that, One side of the heat sink (2) is formed as a support surface (21), and the other side of the heat sink (2) is provided with the support member (3); the inner wall of the cylinder (1) is formed with a first support part and a second support part, the first support part is in abutting contact with the support surface (21) of the heat sink (2), and the second support part is in abutting contact with the support member (3).

7. The heat sink mounting structure according to claim 6, characterized in that, There are two support members (3), which are respectively located near the two ends of the heat sink (2).

8. The heat sink mounting structure according to claim 6, characterized in that, The other side of the heat sink (2) is also used to install a heating element; the heating element is a controller.

9. The heat sink mounting structure according to claim 1 or 8, characterized in that, The cylinder (1) is filled with glue.

10. A deep well pump, characterized in that, Includes the heat sink mounting structure as described in any one of claims 1-9.

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