Electrical connecting piece and efficient modularized cooling fan set

Abstract

The technical scheme of the utility model discloses an electrical connecting piece and a high-efficiency modularized cooling fan group, and the electrical connecting piece completes the electrical connection of two adjacent cooling fan units through two connecting terminals arranged at the two ends of a circuit board. Structural connection of the two adjacent cooling fan units is achieved through detachable adaptation of the positioning concave parts and the cooling fan units, so that the electrical connecting piece has the functions of structural connection and electrical connection of the adjacent cooling fan units, and the design simplifies installation steps, reduces installation cost, enhances connection stability, and improves the reliability of the electrical connecting piece. Wiring in the fan is effectively simplified, fire hazards caused by complex wiring are eliminated, and use is safer. And meanwhile, the connecting stability is further enhanced through the clamping structure achieved through mutual matching of the connecting grooves and the positioning concave parts, loosening or falling off between the radiator fans is effectively prevented, quick disassembly of the multiple fans is facilitated, later maintenance and replacement operation are facilitated, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of heat dissipation fans, and in particular relates to an electrical connector and a high-efficiency modular heat dissipation fan group. Background Art

[0002] Fans are mainly used for heat dissipation and ventilation. They are commonly found in computers, servers, home appliances and other equipment. They help reduce the temperature of the equipment and keep the equipment running normally by generating air flow. With the upgrade of computer hardware, the CPU operating frequency is getting higher and higher, so a larger air volume is needed to ensure the normal operation of the CPU. However, when multiple fans are used at the same time, multiple sets of power cords and sockets need to be prepared. It is difficult to achieve the purpose of synergy when multiple fans work alone.

[0003] In the current fan application field, cooling fans often have the following technical defects:

[0004] (1) Complex wiring poses safety risks. When multiple fans are needed, the traditional approach is to prepare a separate power cord and socket for each fan. This leads to complex wiring, which not only increases installation costs, but also poses safety risks, such as wire crossing and overload.

[0005] (2) The connection strength between cooling fans is insufficient. There are some mechanical combination technology solutions on the market, such as simple sliding fit structures or screw-fixed connections. However, these traditional connection methods often have the problem of insufficient connection strength, especially in high-vibration environments, which are prone to loosening or falling off. In addition, the sliding fit structure often protrudes from the fan frame setting, causing the fan size to change, which is not conducive to standardized production and leads to abnormally high production costs.

[0006] (3) Existing cooling fans are inconvenient to disassemble and assemble. Traditional connection methods usually require the use of screws or other tools for tightening. The disassembly and assembly process is relatively cumbersome and is not conducive to rapid maintenance and replacement.

[0007] Therefore, there is a need to improve the design of the fan connection structure, and it is urgent to design an efficient modular cooling fan structure that is easy to install, has high connection strength between cooling fans, and simplifies internal wiring. Utility Model Content

[0008] In order to solve the above technical problems, the utility model provides an electrical connector, which is arranged between adjacent cooling fan units, and the electrical connector is provided with a circuit board, two connecting terminals fixedly connected above the circuit board and a connector body fixedly installed below the circuit board, wherein conductive circuits are arranged at both left and right ends of the circuit board, and the two connecting terminals are respectively connected to the conductive circuits arranged at both ends of the circuit board, and an installation groove matching the shape of the circuit board is embedded in the upper end surface of the connector body, and a positioning recess is provided on the lower end surface of the connector body for realizing a detachable connection with a fan frame of the cooling fan unit, and the positioning recess is symmetrically arranged on the left and right sides about the center line of the lower end surface of the connector body.

[0009] Further, the interface portion of the connection terminal is made of brass.

[0010] Furthermore, the positioning recess is a positioning hole structure or a positioning groove structure.

[0011] Furthermore, the connector body is a trapezoidal body that is wide at the top and narrow at the bottom, and a limiting protrusion is provided on the middle of the upper end surface of the connector body, and a limiting recess with a matching shape is provided on the circuit board corresponding to the limiting protrusion.

[0012] The present invention also provides a high-efficiency modular cooling fan group, which is equipped with an electrical connector and more than two cooling fan units connected end to end. Adjacent cooling fan units are mechanically and electrically connected through the electrical connector, wherein the cooling fan unit includes a fan frame, and the fan frames of adjacent cooling fan units are spliced ​​to form an electrical connection groove matching the electrical connector. The electrical connector is connected to the fan frame by mortise and tenon connection, and a positioning protrusion matching the shape of the positioning recess of the electrical connector is fixedly arranged inside the electrical connection groove, and a circuit board connector electrically connected to the connection terminal is arranged at the corner of the fan frame.

[0013] Furthermore, the circuit board connector is an arc-shaped circuit board connector.

[0014] Furthermore, a structural connecting member is arranged between adjacent cooling fan units. After the fan frames of adjacent cooling fan units are spliced, a structural connecting groove matching the shape of the structural connecting member is formed on the same side of the electrical connecting groove. The structural connecting member is connected to the fan frame by mortise and tenon connection. A positioning recess is provided at the bottom of the structural connecting member, and a positioning protrusion matching the shape of the positioning recess of the structural connecting member is fixedly arranged inside the structural connecting groove.

[0015] Furthermore, a control button mechanically linked to the positioning protrusion is provided on the fan frame.

[0016] Furthermore, the positioning protrusion includes a positioning bead with an arc-shaped surface, a spring fixedly connected to the positioning bead, and a bracket matching the diameter of the positioning bead, and the positioning concave portion is an arc-shaped groove whose shape matches the positioning bead.

[0017] Furthermore, a fool-proof buckle is provided inside the structural connection groove.

[0018] The technical solution of the utility model discloses an electrical connector for adjacent cooling fan units and an efficient modular cooling fan group with the electrical connector. The electrical connector completes the electrical connection of the adjacent cooling fan units through the connection terminals set at both ends of the circuit board, and realizes the structural connection of the adjacent cooling fan units through the detachable adaptation of the positioning recess and the cooling fan unit, so that the electrical connector has the functions of structural connection and electrical connection of the adjacent cooling fan units. This design not only simplifies the installation steps, reduces the installation cost, and enhances the connection stability, but also effectively simplifies the wiring inside the fan, eliminates the fire hazard caused by the complexity of the wiring, and is safer to use. At the same time, the structure of the clamping position realized by the mutual cooperation between the connecting groove and the positioning recess further strengthens the connection stability, and effectively prevents the loosening or falling off between the radiator fans. In addition, by arranging an elastic member inside the positioning protrusion, the rapid disassembly of multiple fans is realized, which is convenient for later maintenance and replacement operations and improves work efficiency. Finally, the design has modular characteristics, which is convenient for mass production and meets the heat dissipation needs of different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the exploded structure of the electrical connector of the utility model;

[0021] Figure 2 This is a schematic diagram of the combined structure of the electrical connector and the circuit board connector of the utility model;

[0022] Figure 3 This is a schematic diagram of the exploded structure of the heat dissipation fan assembly of the utility model;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the heat dissipation fan assembly of the utility model;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the structural connector of the utility model;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the positioning protrusion of the utility model.

[0026] Description of main component symbols:

[0027] 1-electrical connector; 11-circuit board; 111-conductive circuit; 112-position limiting concave portion; 12-connection terminal; 13-connector body; 131-installation slot; 132-positioning concave portion; 133-position limiting convex portion;

[0028] 1'-structural connector; 132'-positioning recess;

[0029] 2-fan frame; 21-electrical connection slot; 22-circuit board connector; 23-structural connection slot; 24-positioning protrusion;

[0030] 3-positioning bead; 4-spring; 5-bracket; 6-anti-fool buckle DETAILED DESCRIPTION

[0031] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixedly connected" and the like 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 directly connected or indirectly connected through an intermediate medium, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In modern industry and life, fans play a key role as important components in the field of radiators. However, there are many problems with the connection structure of the cooling fan in the prior art, such as complex wiring, insufficient connection stability, and difficulty in assembly and disassembly, which limits its performance and application scope. In order to solve the problems existing in the prior art, the utility model provides an electrical connector arranged between adjacent cooling fans and an efficient modular cooling fan assembly, which mainly optimizes the wiring inside the cooling fan, simplifies the process of installing and disassembling the radiator fan, improves the stability of the interconnection between the radiator fans, and realizes rapid disassembly and maintenance and modular design.

[0035] The utility model aims to provide an electrical connector for use between adjacent cooling fan units and an efficient modular cooling fan group having the electrical connector. The electrical connector has the functions of both structural connection and electrical connection of adjacent cooling fan units. The electrical connector is detachably installed in the electrical connection groove of the cooling fan frame by using a mortise and tenon connection method. This design not only simplifies the installation steps and reduces the installation cost, but also enhances the connection stability by providing a limiting effect in a single direction. At the same time, the structure in which the connection groove and the positioning recess cooperate with each other to achieve the locking position further enhances the connection stability, and effectively prevents the radiator fans from loosening or falling off. In addition, by arranging an elastic member inside the positioning protrusion, multiple fans can be quickly disassembled, which is convenient for later maintenance and replacement operations and improves work efficiency. Finally, the design has modular characteristics, which is convenient for mass production and meets the cooling needs of different scenarios.

[0036] The following is a detailed description of the embodiments and the attached Figure 1-6 The utility model scheme is further elaborated and illustrated.

[0037] Utility Model Embodiment 1:

[0038] The utility model provides an electrical connector arranged between adjacent cooling fan units, such as Figure 1As shown, the electrical connector 1 includes a circuit board 11, two connecting terminals 12 fixedly connected above the circuit board 11, and a connector body 13 fixedly installed below the circuit board 11, wherein conductive circuits 111 are arranged at the left and right ends of the circuit board 11, and the two connecting terminals 12 are respectively connected to the conductive circuits 111 arranged at the two ends of the circuit board 11, and the upper end surface of the connector body 13 is embedded with a mounting groove 131 matching the shape of the circuit board 11, and the lower end surface of the connector body 13 is provided with a pair of positioning recesses 132 for realizing detachable connection with the fan frame 2 of the cooling fan unit, and the positioning recesses 132 are symmetrically arranged on the left and right sides about the center line of the lower end surface of the connector body 13, and the two positioning recesses 132 are respectively arranged corresponding to two adjacent cooling fan units and the electrical connector 1 is detachably connected to the cooling fan unit through the positioning recesses 132. The electrical connector realizes the electrical connection path of two adjacent cooling fan units through the connection terminals set at both ends of the circuit board, and realizes the structural connection of the two adjacent cooling fan units through the detachable adaptation of the positioning recess and the cooling fan unit, so that this electrical connector has the functions of both structural connection and electrical connection of adjacent cooling fan units. Among them, the connection terminal 12 uses a brass gold finger connector whose interface part is made of brass, which has good conductivity, strong corrosion resistance and low cost; the positioning recess is a positioning groove structure; in order to rationalize the structure, the connector body 13 is a trapezoidal body that is wide at the top and narrow at the bottom, and the connector body 13 is provided with a limiting protrusion 133 in the middle of the upper end surface, and the circuit board is provided with a limiting concave 112 with a matching shape corresponding to the limiting protrusion 133.

[0039] Utility Model Embodiment 2:

[0040] Based on the first embodiment, this embodiment provides an efficient modular cooling fan group solution, which is configured with more than two cooling fan units connected end to end and an electrical connector 1 arranged between the cooling fan units. Adjacent cooling fan units are mechanically and electrically connected through the electrical connector 1, wherein, Figure 1-6As shown, the cooling fan unit includes a fan frame 2. The fan frames 2 of adjacent cooling fan units are spliced ​​to form an electrical connection groove 21 that matches the electrical connector 1. The electrical connector 1 is detachably installed in the electrical connection groove 21 of the cooling fan frame 2 by using a mortise and tenon connection method. The corners of the fan frames of two adjacent cooling fans are provided with circuit board 11 connectors corresponding to the electrical connector 1. The circuit board 11 connectors are electrically connected to the brass gold finger connectors on the same side, so that the circuit is turned on between the adjacent cooling fans through the electrical connector 1, thereby completing the connection of the electrical part of the cooling fan unit. Specifically, the circuit part of the fan is the fan control and hub light control circuit, that is, the fan requires a total of six lines (including fan PWM line, fan feedback line, fan 12V power line, lamp bead control signal input line, lamp bead 5V power line, and common ground line), the fan control circuit and the hub light control circuit are in the motor housing of the fan, the fan control circuit leads out 6 lines and is connected to the circuit board 11 of the electrical connector 1 through the fan frame 2, and the circuit board connector 22 set at the corner is connected with a wire in the fan frame 2. Among them, the circuit board connector 22 is an arc-shaped circuit board connector, and brass gold finger connectors are set at both ends of the electrical connector circuit board. When the two fans are connected, the brass gold finger connector on the electrical connector 1 is connected to the arc connector in the fan frame 2. At this time, the PWM speed control line, fan 12V power line, lamp bead 5V power line, and common ground line of the two fans are connected, and the control signal output of the first fan is used as the control signal input of the second fan, so that the power supply and control signal can be transmitted to the second fan, completing the operation and control of the fan.

[0041] A positioning protrusion 24 is fixedly provided inside the electrical connection groove 21, and the positioning protrusion 24 matches the shape of the positioning recess 132 of the electrical connector 1. The electrical connection groove 21 set on the fan frame 2 elastically abuts the positioning recess 132 of the electrical connector 1 through the positioning protrusion. Specifically, the positioning protrusion 24 is composed of a positioning bead 3, a spring 4 fixedly connected to the positioning bead 3, and a bracket 5 matched with the diameter of the positioning bead 3, wherein the positioning bead 3 is a metal sphere with an arc-shaped surface; the spring 4 is a compression spring with a tensile force of 100N; the bracket 5 is a cylindrical structure with one end open, and the inner diameter of the cylindrical structure is larger than the diameter of the positioning bead 3. The positioning bead 3 is tightly matched with the bracket 5 by the elastic force of the spring 4; in this embodiment, the positioning recess 132 is an arc-shaped groove that matches the positioning bead 3, and the positioning protrusion is matched with the positioning recess by the restoring force provided by the internal elastic member, further increasing the limiting effect of the fan frame 2 on the electrical connector, effectively preventing the radiator fans from loosening or falling off, and at the same time, the elastic member arranged inside the positioning protrusion is used to realize the rapid disassembly and assembly of multiple cooling fans, which is convenient for later maintenance and replacement operations and improves work efficiency. When installing two fans, it is only necessary to first insert the electrical connector 1 into the electrical connection slot 21, and then connect the combined components to the corresponding other fan frame to complete the combination of the two fan frames, so as to achieve the purpose of quickly combining the two fans; when disassembling the two fans, it is only necessary to apply force in opposite directions respectively to separate the two fan frames 2, and then pull the electrical connector 1 out of the electrical connection slot 21 of the fan frame to quickly separate the two fans.

[0042] In other embodiments, a control button mechanically linked to the positioning protrusion 24 is provided on the fan frame, and an elastic mechanism is provided inside the control button. The elastic mechanism is implemented by a spring or a rubber strip. When the control button is pressed downward, the positioning protrusion is driven to shrink and deform inward by the force of the internal elastic mechanism, so that the positioning protrusion is separated from the positioning recess, thereby realizing rapid disassembly of the fan frame and the electrical connector. This structure avoids damage to the positioning protrusion material that may be caused by direct pulling, thereby improving the disassembly and assembly life of the equipment.

[0043] Embodiment 3 of the present utility model:

[0044] This embodiment provides a highly efficient modular cooling fan group based on the embodiments 1-2, such as Figure 1-6 As shown, a structural connector 1' is further arranged between adjacent fans. The structural connector 1' has the same shape as the connector body 13 of the electrical connector 1. After the fan frames 2 of adjacent cooling fan units are spliced, a structural connection groove 23 matching the shape of the structural connector 1' is formed on the same side of the electrical connection groove 21. Both ends of the structural connector 1' are respectively embedded in the structural connection groove 23, and are connected to the two adjacent fan frames by mortise and tenon joints, thereby further enhancing the connection strength between the fan units.

[0045] The bottom of the structural connection member 1' is provided with a positioning recess 132', and a positioning protrusion 24 matching the shape of the positioning recess 132' of the structural connection member 1' is fixedly provided inside the structural connection groove 23, and an elastic member is provided inside the positioning protrusion 24. The positioning protrusion 24 matches the shape of the positioning recess 132' of the structural connection member 1', and the structural connection groove 23 provided on the fan frame 2 elastically abuts the positioning recess 132' of the structural connection member 1' through the positioning protrusion 24. Specifically, the positioning protrusion 24 is composed of a positioning bead 3, a spring 4 fixedly connected to the positioning bead 3, and a bracket 5 matched with the diameter of the positioning bead 3, wherein the positioning bead 3 is a metal sphere with an arc-shaped surface; the spring 4 is a compression spring with a tension of 100N; and the bracket 5 is a cylindrical structure with one end open, and the inner diameter of the cylindrical structure is larger than the diameter of the positioning bead 3. The positioning bead 3 is tightly matched with the bracket 5 by the elastic force of the spring 4; in this embodiment, the positioning recess 132' is an arc-shaped groove that matches the positioning bead 3, and the positioning protrusion 24 is matched with the positioning recess 132' by the restoring force provided by the internal elastic member, further increasing the connection strength between the fan frames, effectively preventing the radiator fans from loosening or falling off, and at the same time, the elastic member arranged inside the positioning protrusion 24 is used to realize the rapid disassembly and assembly of multiple cooling fans, which is convenient for later maintenance and replacement operations and improves work efficiency. When installing two fans, it is only necessary to first insert the electrical connector 1 and the structural connector 1' into the electrical connection groove 21 and the structural connection groove 23 respectively, and then connect the combined components to another fan frame accordingly, so as to complete the combination of the two fan frames and achieve the purpose of quickly combining the two fans; when disassembling the two fans, it is only necessary to apply force in opposite directions respectively to separate the two fan frames 2, and then pull out the electrical connector 1 and the structural connector 1' from the electrical connection groove 21 and the structural connection groove 23 of the fan frame, so as to quickly separate the two fans. In this embodiment, a fool-proof buckle 6 is further provided inside the structural connection groove 23 to prevent the electrical connector from being inserted into the structural connection groove by mistake.

[0046] The above is a detailed introduction to an electrical connector and a high-efficiency modular cooling fan group provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the ideas and methods of the utility model, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. An electrical connector, arranged between adjacent cooling fan units, characterized in that: The electrical connector is provided with a circuit board, two connecting terminals fixedly connected above the circuit board, and a connector body fixedly installed below the circuit board, wherein the left and right ends of the circuit board are provided with conductive circuits, and the two connecting terminals are respectively connected to the conductive circuits arranged at the two ends of the circuit board, and the upper end surface of the connector body is embedded with a mounting groove matching the shape of the circuit board, and the lower end surface of the connector body is provided with a positioning recess for realizing a detachable connection with a fan frame of a cooling fan unit, and the positioning recess is symmetrically arranged on the left and right sides about the center line of the lower end surface of the connector body.

2. The electrical connector according to claim 1, characterized in that The interface parts of the two connecting terminals are made of brass.

3. The electrical connector according to claim 1, characterized in that: The positioning recess is a positioning hole structure or a positioning groove structure.

4. The electrical connector according to claim 1, characterized in that The connector body is a trapezoidal body that is wide at the top and narrow at the bottom, and a limiting convex portion is provided in the middle of the upper end surface of the connector body, and the circuit board is provided with a limiting concave portion with a matching shape corresponding to the limiting convex portion.

5. An efficient modular cooling fan assembly, characterized in that: An electrical connector as described in any one of claims 1 to 4 is configured, and two or more cooling fan units are connected end to end, adjacent cooling fan units are mechanically and electrically connected through the electrical connector, wherein the cooling fan unit includes a fan frame, and the fan frames of adjacent cooling fan units are spliced ​​to form an electrical connection groove matching the electrical connector, the electrical connector is connected to the fan frame by mortise and tenon connection, a positioning protrusion matching the shape of the positioning recess is fixedly provided inside the electrical connection groove, and a circuit board connector electrically connected to the two connecting terminals is provided at the corner of the fan frame.

6. The high-efficiency modular heat dissipation fan assembly according to claim 5, characterized in that: The circuit board connector is an arc-shaped circuit board connector.

7. The high-efficiency modular heat dissipation fan assembly according to claim 5, characterized in that: A structural connector is also arranged between adjacent cooling fan units. The structural connector has the same shape as the main body of the electrical connector. After the fan frames of adjacent cooling fan units are spliced, a structural connection groove matching the shape of the structural connector is formed on the same side of the electrical connection groove. The structural connector is connected to the fan frame by mortise and tenon connection. A positioning protrusion matching the shape of the positioning concave portion of the structural connector is fixedly arranged inside the structural connection groove.

8. The high-efficiency modular cooling fan assembly according to any one of claims 5 to 7, characterized in that: The fan frame is provided with a control button which is mechanically linked with the positioning protrusion.

9. The high-efficiency modular cooling fan assembly according to any one of claims 5 to 7, characterized in that: The positioning protrusion includes a positioning bead with an arc-shaped surface, a spring fixedly connected to the positioning bead, and a bracket matched with the diameter of the positioning bead, and the positioning concave portion is an arc-shaped groove whose shape matches the positioning bead.

10. The high-efficiency modular heat dissipation fan assembly according to claim 7, characterized in that: A foolproof buckle is provided inside the structural connection groove.

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