Direct-current fan controller, direct-current fan and phase current detection device

Abstract

The utility model relates to the technical field of direct current fans, and discloses a direct current fan controller, a direct current fan and a phase current detection device. The electric control board is mounted in the shell; a first detection needle seat is arranged on the electric control board, a first detection needle and a second detection needle are arranged on the first detection needle seat, and the first detection needle and the second detection needle extend out of the opening; a phase welding point and a phase winding are further arranged on the electric control board, the first detection needle is electrically connected with the phase welding point, the second detection needle is electrically connected with the phase winding, and the phase welding point corresponds to the phase winding; and the short circuit cap is sleeved on the first detection needle and the second detection needle, so that the first detection needle is electrically connected with the second detection needle. According to the utility model, the detection device can be connected to the first detection needle and the second detection needle which extend out of the opening, so that the shell of the whole direct current fan controller does not need to be disassembled, and the detection efficiency of the phase current of the direct current fan can be effectively improved; and the short-circuit cap can ensure normal operation of the direct-current fan.

Description

Technical Field

[0001] The utility model relates to the technical field of DC fans, in particular to a DC fan controller, a DC fan and a phase current detection device. Background Art

[0002] Currently, DC fans used in gas water heaters are equipped with internal drive controllers. Testing the phase current of a DC fan requires disassembling the fan and soldering out a phase lead from the controller, significantly reducing phase current testing efficiency. Utility Model Content

[0003] The first technical problem solved by the present invention is to provide a DC fan controller and a DC fan, which effectively solve the technical problem of low phase current testing efficiency of the DC fan.

[0004] The first technical problem mentioned above is solved by the following technical solution:

[0005] A DC fan controller, comprising:

[0006] a housing having an opening;

[0007] An electric control board is installed in the housing; a first detection needle holder is provided on the electric control board, a first detection needle and a second detection needle are provided on the first detection needle holder, and the first detection needle and the second detection needle extend out of the opening;

[0008] The electric control board is further provided with a phase welding point and a phase winding, the first detection needle is electrically connected to the phase welding point, the second detection needle is electrically connected to the phase winding, and the phase welding point corresponds to the phase winding;

[0009] The short-circuit cap is sleeved on the first detection needle and the second detection needle to electrically connect the first detection needle and the second detection needle.

[0010] Compared with the background technology, the DC fan controller described in the present invention has the following beneficial effects: an electric control board is installed in a shell, a first detection needle holder is provided on the electric control board, and a first detection needle and a second detection needle are provided on the first detection needle holder, so that the first detection needle and the second detection needle extend out of an opening provided on the shell; the first detection needle and the second detection needle are electrically connected to the phase welding point and the phase winding, respectively. When it is necessary to detect the phase current of the DC fan, the detection device is connected to the first detection needle and the second detection needle extending out of the opening, thereby eliminating the need to disassemble the entire DC fan controller shell, and effectively improving the detection efficiency of the DC fan phase current. When the DC fan is operating normally, the first detection needle and the second detection needle are electrically connected by putting a short-circuit cap on the first detection needle and the second detection needle, thereby ensuring the normal operation of the DC fan.

[0011] In one embodiment, the short-circuit cap is provided with a first groove matching the first detection needle seat at one end, and a conductive sheet is provided at the other end. When the short-circuit cap is mounted on the first detection needle seat, the first detection needle and the second detection needle extend into the first groove and contact the conductive sheet.

[0012] Beneficial Effects: By providing a first groove on one end of the shorting cap that matches the first detection needle holder, the connection between the shorting cap and the first detection needle holder is ensured to be stable and tight, preventing the shorting cap from loosening or falling off during use. The conductive sheet on the other end of the shorting cap can be placed on the first detection needle holder. After the shorting cap is fitted over the first detection needle holder, and the first and second detection needles extend into the first groove, the first and second detection needles come into contact with the conductive sheet, thereby achieving electrical connection between the first and second detection needles.

[0013] In one embodiment, a sealing sleeve is further included. The sealing sleeve is provided at the opening, and a second groove is provided on the sealing sleeve. The first detection needle and the second detection needle extend into the second groove.

[0014] Beneficial Effects: By installing a sealing sleeve over the opening of the housing, the opening is sealed, preventing external dust, moisture, and impurities from entering the housing, thereby protecting components such as the electronic control board within the housing from external environmental factors. By providing a second groove in the sealing sleeve, when the sealing sleeve is installed at the opening, the first and second detection needles can extend into the second groove without being obstructed or damaged by the sealing sleeve.

[0015] In one embodiment, the phase welding point includes any one of a U-phase welding point, a V-phase welding point, and a W-phase welding point; and the phase winding includes any one of a U-phase winding, a V-phase winding, and a W-phase winding corresponding to the phase welding point.

[0016] Beneficial effects: There are multiple phase welding points and phase windings on the electric control board. The first detection needle can be electrically connected to any one of the U-phase welding point, V-phase welding point, and W-phase welding point, and the second detection needle can be electrically connected to any one of the U-phase winding, V-phase winding, and W-phase winding. When the first detection needle is electrically connected to the U-phase welding point, the second detection needle needs to be electrically connected to the U-phase winding to ensure that the phase welding points and phase windings correspond to each other. Similarly, when the first detection needle is electrically connected to the V-phase welding point, the second detection needle needs to be electrically connected to the V-phase winding; when the first detection needle is electrically connected to the W-phase welding point, the second detection needle needs to be electrically connected to the W-phase winding. This avoids inaccurate measurements and abnormal operation of the DC fan, ensuring the safe operation of the DC fan.

[0017] In one embodiment, the electric control board is further provided with a second detection needle holder, and the second detection needle holder is provided with a plurality of third detection needles.

[0018] Beneficial effect: By setting a second detection needle holder on the electronic control board and setting multiple third detection needles on the second detection needle holder; when the DC fan is program burned and debugged, there is no need to disassemble the DC fan, and multiple third detection needles are connected to the DC fan for program burning and debugging, which can effectively improve the convenience of program burning and debugging.

[0019] In one embodiment, there are four third detection pins, which are respectively a power pin, a clock signal pin, a debugging data pin, and a ground pin.

[0020] Beneficial effect: By setting the power pin, clock signal pin, debug data pin and ground pin, a program burning and debugging interface is formed; the DC fan controller is connected to the DC fan through the program burning and debugging interface to realize the program burning, debugging and fault diagnosis functions of the DC fan, thereby improving the convenience of DC fan program burning and debugging.

[0021] On the other hand, the present invention also provides a DC fan, comprising:

[0022] A DC fan body, wherein the DC fan body is provided with a debugging window;

[0023] In the DC fan controller as described above, the debugging window matches the second detection needle seat provided on the electronic control board.

[0024] Beneficial effect: By setting a debugging window that matches the second detection needle holder on the DC fan body; when the DC fan is program burned and debugged, the second detection needle holder is inserted into the debugging window, so that the control software of the DC fan can be debugged without disassembling the DC fan body, thereby improving the convenience of program burning and debugging.

[0025] In one embodiment, a sealing strip is further included, which is installed on the debugging window.

[0026] Beneficial effect: When the DC fan is operating normally, by installing a sealing strip corresponding to the debugging window to seal the DC fan, external dust, moisture, impurities, etc. can be prevented from entering the DC fan, thereby protecting the components inside the DC fan from being affected by external environmental factors.

[0027] On the other hand, the present invention also provides a phase current detection device, comprising:

[0028] A wire loop and a first connecting end and a second connecting end electrically connected to the wire loop; the first connecting end and the second connecting end are electrically connected to the first detection needle and the second detection needle respectively, and the wire loop is provided with an exposed section.

[0029] Beneficial Effects: By electrically connecting the first and second connection terminals to the first and second detection pins, respectively, the phase current detection device can be connected to the circuit on the electrical control board where phase current detection is required. Providing an exposed section on the wire loop facilitates interaction between other detection equipment and the DC fan circuit through the exposed section, further improving detection performance and flexibility.

[0030] In one embodiment, it further includes:

[0031] A connecting base, wherein the first connecting end and the second connecting end are integrally provided with the connecting base.

[0032] Beneficial effects: The connecting base provides a stable installation position for the first connecting end and the second connecting end, ensuring the stability and reliability of the entire phase current detection device during use; the first connecting end and the second connecting end are integrated with the connecting base, and when the phase current detection device is connected to the first detection needle base, the first connecting end and the second connecting end can be connected to the first detection needle and the second detection needle at the same time, thereby improving the convenience of installation; at the same time, the integrated setting can reduce the probability of problems such as loose connection and poor contact, thereby improving the reliability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 This is a schematic structural diagram of a controller for a DC fan according to an embodiment of the present utility model;

[0035] Figure 2 This is a structural diagram of a controller for a DC fan according to another embodiment of the present invention;

[0036] Figure 3 This is a schematic structural diagram of a short-circuit cap in a controller of a DC fan according to an embodiment of the present utility model;

[0037] Figure 4 for Figure 3 A bottom view of the shorting cap is shown;

[0038] Figure 5 This is a structural schematic diagram of a sealing sleeve in a controller of a DC fan according to an embodiment of the present utility model;

[0039] Figure 6 for Figure 5 The cross-sectional structural diagram of the sealing sleeve shown along the AA direction;

[0040] Figure 7 This is a structural diagram of a DC fan according to an embodiment of the present utility model;

[0041] Figure 8 This is a structural diagram of a controller for a DC fan according to another embodiment of the present invention.

[0042] Figure 9 This is a structural diagram of a phase current detection device according to an embodiment of the present utility model;

[0043] Figure 10 for Figure 9 A schematic structural diagram of a connecting socket in a phase current detection device shown;

[0044] Description of reference numerals:

[0045] 10. Controller; 100. Housing; 110. Electric control board; 111. First detection needle holder; 1111. First detection needle; 1112. Second detection needle; 112. Phase welding point; 113. Phase winding; 114. Second detection needle holder; 1141. Third detection needle; 200. Short-circuit cap; 210. Conductive sheet; 220. First groove; 300. Phase current detection device; 310. Wire loop; 320. First connection end; 330. Second connection end; 340. Connection seat; 400. Sealing sleeve; 410. Second groove; 20. DC fan body; 21. Debugging window; 22. Sealing strip. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0048] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0049] The following combination Figures 1 to 10 , describing the embodiments of the present utility model.

[0050] According to an embodiment of the present invention, on the one hand, Figures 1 to 4 As shown, a DC fan controller 10 is provided, including: a housing 100 having an opening; an electric control board 110 installed in the housing 100; a first detection needle holder 111 is provided on the electric control board 110, and a first detection needle 1111 and a second detection needle 1112 are provided on the first detection needle holder 111, and the first detection needle 1111 and the second detection needle 1112 extend out of the opening; a phase welding point 112 and a phase winding 113 are also provided on the electric control board 110, the first detection needle 1111 is electrically connected to the phase welding point 112, and the second detection needle 1112 is electrically connected to the phase winding 113, and the phase welding point 112 and the phase winding 113 correspond to each other; a short-circuit cap 200 is sleeved on the first detection needle 1111 and the second detection needle 1112 to electrically connect the first detection needle 1111 and the second detection needle 1112.

[0051] In this embodiment, an opening is provided in the housing 100 of the DC fan controller 10; an electrical control board 110 is mounted within the housing 100, a first detection needle holder 111 is provided on the electrical control board 110, and a first detection needle 1111 and a second detection needle 1112 are provided on the first detection needle holder 111. The first detection needle 1111 and the second detection needle 1112 are used to measure electrical signals, such as voltage and current, of specific circuits on the electrical control board 110 for fault diagnosis, debugging, or performance testing. The first detection needle 1111 and the second detection needle 1112 extend out of the opening provided in the housing 100; the first detection needle 1111 and the second detection needle 1112 are electrically connected to the phase welding point 112 and the phase winding 113, respectively. When the DC fan phase current needs to be detected, the detection device is connected to the first detection pin 1111 and the second detection pin 1112 extending from the opening. This eliminates the need to disassemble the entire housing 100 of the DC fan controller 10 and eliminates the need to weld the phase leads in the controller 10, effectively improving the efficiency of detecting the DC fan phase current. When the DC fan is operating normally, the shorting cap 200 is placed over the first detection pin 1111 and the second detection pin 1112, electrically connecting the first detection pin 1111 and the second detection pin 1112, thereby ensuring the normal operation of the DC fan.

[0052] In one embodiment, a first groove 220 matching the first detection needle seat 111 is provided at one end of the short-circuit cap 200, and a conductive sheet 210 is provided at the other end. When the short-circuit cap 200 is sleeved on the first detection needle seat 111, the first detection needle 1111 and the second detection needle 1112 extend into the first groove 220 and contact the conductive sheet 210.

[0053] In this embodiment, a first groove 220 is provided at one end of the shorting cap 200 to mate with the first detection needle holder 111. This ensures a stable and tight connection between the shorting cap 200 and the first detection needle holder 111, preventing the shorting cap 200 from loosening or falling off during use. A conductive sheet 210 is provided at the other end of the shorting cap 200. Once the shorting cap 200 is positioned over the first detection needle holder 111 and the first and second detection needles 1111, 1112 extend into the first groove 220, allowing the first and second detection needles 1111, 1112 to contact the conductive sheet 210, thereby achieving electrical connection between the first and second detection needles 1111, 1112. The conductive sheet 210 can be made of a material with good electrical conductivity, such as metal, to ensure smooth current flow between the first and second detection needles 1111, 1112.

[0054] In one embodiment, Figure 5 、 Figure 6As shown, the sealing sleeve 400 is further included. The sealing sleeve 400 is provided at the opening. A second groove 410 is provided on the sealing sleeve 400 . The first detection needle 1111 and the second detection needle 1112 extend into the second groove 410 .

[0055] In this embodiment, the sealing sleeve 400 may be a resilient silicone sealing sleeve. The silicone sealing sleeve, through its elastic properties, adheres to the opening of the housing 100 to form a sealing structure, thereby sealing the opening of the housing 100 and preventing external dust, moisture, impurities, etc. from entering the housing 100, thereby protecting components such as the electronic control board 110 within the housing 100 from external environmental factors. A second groove 410 is provided in the sealing sleeve 400. Since the first and second detection needles 1111 and 1112 extend out of the opening of the housing 100, when the sealing sleeve 400 is installed, the first and second detection needles 1111 and 1112 naturally extend into the second groove 410 of the sealing sleeve 400. This ensures that the first and second detection needles 1111 and 1112 can normally extend out of the housing 100 to connect to external detection equipment, while also ensuring that the opening is sealed by the sealing sleeve 400.

[0056] In other possible implementations, the second groove 410 is disposed in the middle of the sealing sleeve 400, and the dimensions of the second groove 410 match those of the shorting cap 200. When the DC blower is operating normally, the shorting cap 200 needs to be placed over the first detection needle holder 111, electrically connecting the first detection needle 1111 and the second detection needle 1112. In this case, the shorting cap 200 cannot seal the opening in the housing 100. By placing a sealing sleeve 400 over the shorting cap 200, the housing 100 can be effectively sealed while ensuring normal operation of the blower.

[0057] In one embodiment, the phase welding point 112 includes any one of a U-phase welding point, a V-phase welding point, and a W-phase welding point; and the phase winding 113 includes any one of a U-phase winding, a V-phase winding, and a W-phase winding corresponding to the phase welding point 112 .

[0058] In this embodiment, there are multiple phase welding points 112 and phase windings 113 on the electric control board 110. The first detection needle 1111 can be electrically connected to any one of the U-phase welding point, the V-phase welding point and the W-phase welding point, and the second detection needle 1112 can be electrically connected to any one of the U-phase winding, the V-phase winding and the W-phase winding; when the first detection needle 1111 is electrically connected to the U-phase welding point, the second detection needle 1112 needs to be electrically connected to the U-phase winding so that the phase welding point 112 and the phase winding 113 correspond to each other; similarly, when the first detection needle 1111 is electrically connected to the V-phase welding point, the second detection needle 1112 needs to be electrically connected to the V-phase winding; when the first detection needle 1111 is electrically connected to the W-phase welding point, the second detection needle 1112 needs to be electrically connected to the W-phase winding. By arranging the phase welding points 112 and the phase windings 113 to correspond to each other, inaccurate measurements and abnormal operation of the DC fan can be avoided, thereby ensuring safe operation of the DC fan.

[0059] In one embodiment, the electric control board 110 is further provided with a second detection needle holder 114 , and the second detection needle holder 114 is provided with a plurality of third detection needles 1141 .

[0060] In this embodiment, a second detection pin holder 114 is provided on the electronic control board 110, and multiple third detection pins 1141 are provided on the second detection pin holder 114. When programming and debugging the DC blower, the DC blower can be connected to the multiple third detection pins 1141 for programming and debugging without disassembling the blower. This effectively improves the convenience of programming and debugging. Multiple third detection pins 1141 also allow for simultaneous operation, improving the efficiency of programming and debugging. For example, real-time monitoring and debugging can be performed while programming, allowing for timely identification and resolution of problems.

[0061] In one embodiment, four third detection pins 1141 are provided, and the four third detection pins 1141 are respectively a power pin, a clock signal pin, a debugging data pin, and a ground pin.

[0062] In this embodiment, a program burn-in and debug interface is formed by providing a power pin, a clock signal pin, a debug data pin, and a ground pin. Through the program burn-in and debug interface, the DC fan controller 10 is connected to the DC fan to implement functions such as program burn-in, debugging, and fault diagnosis for the DC fan, thereby improving the convenience of DC fan program burn-in and debugging. The power pin provides a stable power supply to the DC fan during program burn-in and debugging; the clock signal pin provides a clock signal to ensure that data transmission between the controller 10 and the DC fan proceeds according to the correct timing; the debug data pin communicates with the DC fan to facilitate fault diagnosis and program debugging by developers; and the ground pin prevents errors caused by external interference during data transmission.

[0063] According to an embodiment of the present invention, on the other hand, Figure 7 As shown, a DC fan is also provided, including: a DC fan body 20, on which a debugging window 21 is provided; a DC fan controller 10, wherein the debugging window 21 matches a second detection needle seat 114 provided on the electric control board 110.

[0064] In this embodiment, a debugging window 21 matching the second detection needle holder 114 is provided on the DC fan body 20. When the DC fan is program burned and debugged, the second detection needle holder 114 is inserted into the debugging window 21, and the DC fan is interacted with through multiple third detection needles 1141, so as to debug the control software of the DC fan without disassembling the DC fan body 20, thereby improving the convenience of program burning and debugging.

[0065] In one embodiment, a sealing strip 22 is further included, installed on the debugging window 21. During normal operation of the DC fan, to prevent external dust, moisture, impurities, etc. from entering the DC fan, a sealing strip 22 matching the size of the debugging window 21 can be installed at the debugging window 21 to seal the DC fan, thereby protecting the components within the DC fan from external environmental factors. The sealing strip 22 can be a silicone sealing strip 22.

[0066] According to an embodiment of the present invention, on the other hand, Figures 8 to 10 As shown, a phase current detection device 300 is also provided, including: a wire loop 310 and a first connection end 320 and a second connection end 330 electrically connected to the wire loop 310; the first connection end 320 and the second connection end 330 are electrically connected to the first detection needle 1111 and the second detection needle 1112 respectively, and an exposed section is provided on the wire loop 310.

[0067] In this embodiment, the first connection end 320 and the second connection end 330 of the phase current detection device 300 are compatible with the first detection pin 1111 and the second detection pin 1112 on the electronic control board 110. Specifically, the first connection end 320 can be electrically connected to the first detection pin 1111, and the second connection end 330 can be electrically connected to the second detection pin 1112; or the first connection end 320 can be electrically connected to the second detection pin 1112, and the second connection end 330 can be electrically connected to the first detection pin 1111. The above connection method of the two connection ends and the two detection pins has no effect on the accuracy of the detection results. The specific choice is optional and is not limited. Furthermore, the first connection end 320 and the second connection end 330 are electrically connected to the wire loop 310. When the two connection ends are electrically connected to the first detection pin 1111 and the second detection pin 1112, the phase current detection device 300 can be connected to the circuit on the electronic control board 110 where the phase current needs to be detected, and the wire loop 310 can accurately obtain the current signal in the detected circuit. An exposed section is provided on the wire loop 310 so that other detection equipment can interact with the circuit of the DC fan through the exposed section, thereby further improving the performance and flexibility of the detection.

[0068] When using the phase current detection device 300 to detect the phase current of the DC fan, it is necessary to remove the short-circuit cap 200 from the first detection pin 1111 and the second detection pin 1112, and then connect the phase current detection device 300 to the first detection pin 1111 and the second detection pin 1112 before detecting the phase current of the DC fan.

[0069] In one embodiment, the invention further comprises: a connecting base 340 , and the first connecting end 320 and the second connecting end 330 are integrally provided with the connecting base 340 .

[0070] In this embodiment, the connecting base 340 provides a stable installation position for the first connecting end 320 and the second connecting end 330, ensuring the stability and reliability of the entire phase current detection device 300 during use; the first connecting end 320 and the second connecting end 330 are integrated with the connecting base 340, and when the phase current detection device 300 is connected to the first detection needle base 111, the first connecting end 320 and the second connecting end 330 can be connected to the first detection needle 1111 and the second detection needle 1112 at the same time, thereby improving the convenience of installation; at the same time, the integrated setting can reduce the probability of problems such as loose connection and poor contact, thereby improving the reliability of the connection.

[0071] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The specific contents of the above-mentioned specific embodiments only express several embodiments of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. A DC fan controller, characterized in that: include: A housing (100) having an opening; An electric control board (110) is installed in the housing (100); a first detection needle seat (111) is provided on the electric control board (110); a first detection needle (1111) and a second detection needle (1112) are provided on the first detection needle seat (111); the first detection needle (1111) and the second detection needle (1112) extend out of the opening; The electric control board (110) is further provided with a phase welding point (112) and a phase winding (113); the first detection needle (1111) is electrically connected to the phase welding point (112); the second detection needle (1112) is electrically connected to the phase winding (113); and the phase welding point (112) and the phase winding (113) correspond to each other. The short-circuit cap (200) is sleeved on the first detection needle (1111) and the second detection needle (1112) to electrically connect the first detection needle (1111) and the second detection needle (1112).

2. The DC fan controller according to claim 1, characterized in that: One end of the short-circuit cap (200) is provided with a first groove (220) matching the first detection needle seat (111), and the other end is provided with a conductive sheet (210). When the short-circuit cap (200) is sleeved on the first detection needle seat (111), the first detection needle (1111) and the second detection needle (1112) extend into the first groove (220) and contact the conductive sheet (210).

3. The DC fan controller according to claim 1, characterized in that: The invention also includes a sealing sleeve (400) disposed at the opening, wherein a second groove (410) is provided on the sealing sleeve (400), and the first detection needle (1111) and the second detection needle (1112) extend into the second groove (410).

4. The DC fan controller according to claim 1, characterized in that: The phase welding point (112) includes any one of a U-phase welding point, a V-phase welding point, and a W-phase welding point; and the phase winding (113) includes any one of a U-phase winding, a V-phase winding, and a W-phase winding corresponding to the phase welding point (112).

5. The DC fan controller according to claim 1, characterized in that: The electric control board (110) is further provided with a second detection needle seat (114), and the second detection needle seat (114) is provided with a plurality of third detection needles (1141).

6. The DC fan controller according to claim 5, characterized in that: There are four third detection pins (1141), and the four third detection pins (1141) are respectively a power pin, a clock signal pin, a debugging data pin, and a ground pin.

7. A DC fan, characterized in that: include: A DC fan body (20), wherein the DC fan body (20) is provided with a debugging window (21); The DC fan controller (10) according to any one of claims 1 to 6, wherein the debugging window (21) matches a second detection needle seat (114) provided on the electronic control board.

8. The DC fan according to claim 7, characterized in that: It also includes a sealing strip (22) installed on the debugging window (21).

9. A phase current detection device, characterized in that: A DC fan controller according to any one of claims 1 to 6, comprising: A wire loop (310) and a first connecting end (320) and a second connecting end (330) electrically connected to the wire loop (310); the first connecting end (320) and the second connecting end (330) are electrically connected to the first detection needle (1111) and the second detection needle (1112), respectively; and an exposed section is provided on the wire loop (310).

10. The phase current detection device according to claim 9, characterized in that: Also includes: A connecting seat (340), wherein the first connecting end (320) and the second connecting end (330) are integrally provided with the connecting seat (340).

Images