Radiator and electric tool

Abstract

The utility model discloses a radiator, which comprises a bottom plate (1); the plurality of radiating fins (2 and 20) are vertically arranged on the bottom plate, a containing space (P) is formed between every two adjacent radiating fins, at least one containing space is formed into a cable path (31), at least one radiating fin is further provided with a path groove (21), and the path groove is communicated with the cable path; wherein at least one radiating fin is further provided with a clamping groove (5) used for restraining the cable in the height direction. According to the utility model, not only can a good heat dissipation function be realized, but also other functions can be realized at the same time, for example, ordered arrangement and fixation of cables can be realized.

Description

Technical Field

[0001] The utility model relates to a heat dissipation structure, in particular to a heat dissipation structure used for electronic components. Background Art

[0002] Power tools generate a lot of heat when in use. For the electronic components installed in the power tool housing, especially the printed circuit board (PCB board) integrated with multiple electronic components, excessive heat accumulation will affect the normal working state of the printed circuit board. In severe cases, it may cause the circuit to burn, causing damage to the tool and even causing safety hazards.

[0003] In addition, since there are many electronic components in the power tools, such as motors, printed circuit boards, etc., there will be more connecting cables. Especially for cordless power tools, the internal cables are more complicated and messy. This complicated and messy wiring also affects the working environment and heat dissipation environment of the electronic devices. Utility Model Content

[0004] The purpose of the utility model is to provide a radiator, which can not only achieve good heat dissipation function, but also achieve other functions at the same time, such as orderly arrangement and fixation of cables.

[0005] In order to achieve the above object, the utility model proposes a multifunctional radiator, which comprises:

[0006] Base plate;

[0007] A plurality of heat sinks are vertically arranged on a bottom plate, wherein adjacent heat sinks have accommodation spaces between them, at least one accommodation space is formed as a cable path, and at least one of the heat sinks is also provided with a path groove, which is communicated with the cable path.

[0008] Furthermore, in some embodiments of the present invention, at least one heat sink is further provided with a fixing groove for restraining the cable in the height direction.

[0009] Furthermore, in some embodiments of the present invention, a hollow portion is provided on the bottom plate, and the hollow portion is connected to the path groove and / or the cable path.

[0010] Furthermore, in some embodiments of the present invention, the accommodating space includes a first accommodating space and a second accommodating space whose volume is larger than that of the first accommodating space.

[0011] Furthermore, in some embodiments of the present invention, the heat sinks are arranged parallel to each other.

[0012] Furthermore, in some embodiments of the present invention, the heat sinks are of the same height.

[0013] Furthermore, in some embodiments of the present invention, a baffle is also included, which is arranged to extend outward from the heat sink at the end.

[0014] Furthermore, in some embodiments of the present invention, the baffle is parallel to the bottom plate.

[0015] Furthermore, in some embodiments of the present invention, a guide rib is provided between at least two adjacent heat sinks, and the guide rib extends upward in the height direction from the side edge of the bottom plate.

[0016] Furthermore, in some embodiments of the present invention, the guide rib is slightly recessed inward relative to the side of the heat sink.

[0017] Another object of the utility model is to provide an electric tool with good heat dissipation and orderly internal structure.

[0018] Based on the above purpose, the utility model also provides an electric tool, which includes the radiator as described above, wherein the multifunctional radiator is disposed in a housing of the electric tool and connected to a circuit board in the housing.

[0019] The multifunctional radiator described in the utility model can not only realize good heat dissipation function, but also realize other functions at the same time, such as realizing orderly arrangement and fixation of cables, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of the multifunctional radiator of the utility model in one embodiment is shown at one viewing angle.

[0021] Figure 2 A schematic structural diagram of the multifunctional radiator of the utility model in another perspective under one embodiment is shown.

[0022] Figure 3 The diagram shows a state in which a cable is arranged on the multifunctional radiator of the present utility model in one embodiment.

[0023] Figure 4 A schematic structural diagram of the multifunctional radiator of the utility model in another embodiment is shown from a viewing angle.

[0024] Figure 5 A schematic structural diagram of the multifunctional radiator of the utility model in another embodiment is shown at another viewing angle.

[0025] Figure 6 The figure shows a state in which a cable is arranged on the multifunctional radiator of the present utility model in another embodiment.

[0026] Figure 7 A structural schematic diagram of the multifunctional radiator of the utility model in another embodiment is shown.

[0027] Figure 8 One setting state of a multifunctional heat sink with a baffle is shown.

[0028] Fig. 9 Another setting state of the multifunctional heat sink with baffles is shown.

[0029] Fig.10 A schematic structural diagram of the multifunctional radiator of the utility model in another embodiment is shown.

[0030] Fig.11 The multifunctional heat sink with guide ribs is shown in the arrangement state in the power tool housing.

[0031] Fig.12 The utility model shows an electric tool provided with a multifunctional heat sink.

[0032] Fig.13 The figure shows the setting state of the multifunctional radiator of the utility model on the PCB board. DETAILED DESCRIPTION

[0033] The multifunctional radiator and the electric tool described in the present invention will be further explained and illustrated below in conjunction with the drawings and specific embodiments of the specification. However, such explanation and illustration do not constitute an improper limitation on the technical solution of the present invention.

[0034] In daily use, power tools generate a lot of heat when in use. For the electronic components installed in the power tool housing, especially the printed circuit board (PCB board) integrated with multiple electronic components, excessive heat accumulation will affect the normal working state of the printed circuit board. In severe cases, it will cause the circuit to burn, causing damage to the tool and even causing safety hazards.

[0035] In addition, since there are many electronic components installed in the power tools, there will be more connecting cables, especially for cordless power tools, the cables inside are even more messy, and this messy wiring also affects the working environment and heat dissipation environment of the electronic devices, and also affects the user experience.

[0036] In order to solve the above problems, the utility model provides a multifunctional radiator in one embodiment, which can not only achieve good heat dissipation function, but also achieve other functions at the same time, such as orderly arrangement and fixation of cables, thereby saving the setting space of components in the limited shell space of the power tool on the basis of achieving multiple functions.

[0037] Figure 1 and Figure 2 The schematic structural diagrams of the multifunctional radiator of the utility model in one embodiment are shown from different perspectives.

[0038] like Figure 1 and Figure 2 As shown, in one embodiment, the multifunctional radiator of the utility model may include:

[0039] A bottom plate 1 for setting on an electronic component, such as a PCB board; and a plurality of heat sinks 2 vertically set on the bottom plate 1 (as an example and not a limitation, Figure 1 and Figure 2 The example shown has six heat sinks 2), wherein adjacent heat sinks 2 have accommodation spaces P between them, at least one of which can form a cable path 31 for wiring. In addition, the heat sink 2 is also provided with a path groove 21 for wiring, and the path groove 21 is connected to the cable path 31 so that the cable can pass therethrough.

[0040] In addition, in some embodiments of the utility model, the cable path 31 can also be used as a storage space for cables, so that overlong cables can be placed in the storage space in a winding and folded manner.

[0041] exist Figure 2 In the embodiment shown, the path groove 21 is not only provided on one end heat sink 2, but also provided on the middle heat sink 20. As an example and not a limitation, Figure 1 and Figure 2 In the example shown, path grooves 21 are provided on all five heat sinks, but no path groove is provided on the heat sink at one end.

[0042] In addition, in some embodiments, Figure 2 As shown, the bottom plate 1 may also be provided with a hollow portion 11 for allowing cables to pass through. In this state, the path groove 21 provided on the middle heat sink 20 makes the middle heat sink 20 in a discontinuous (disconnected in the middle) setting state. In this embodiment, the cable can pass through the disconnected portion (i.e., the path groove).

[0043] When the cable extends from the electronic component at the bottom of the base plate 1 , the cable can extend into the path groove and / or the cable path through the hollow portion 11 .

[0044] Figure 3 The figure shows the arrangement status of the cables on the multifunctional radiator of the present invention in one embodiment.

[0045] like Figure 3As shown, the first cable 100 can be wound between the multiple radiating fins of the radiator through the cable path 31 formed by the multiple adjacent radiating fins, and extend outward through the path groove 21 on the radiator. The second cable 200 extends from the electronic component at the bottom of the base plate 1, and the second cable 200 passes through the hollow portion 11 and enters the path groove 21 to extend.

[0046] It should be noted that in the present invention, the accommodation spaces between two adjacent heat sinks can all be used as cable paths, and which accommodation space is used as the cable path often depends on the requirements of cable arrangement.

[0047] Likewise, the present invention does not impose any specific limitation on which heat sink the path groove is provided on, and the number and location of the path grooves may also be based on the requirements of cable arrangement.

[0048] The utility model arranges the cable path and the path groove on the radiator, so that the cables originally arranged in a disorderly manner in the housing of the electric tool can be guided and fixed in an orderly manner, thereby preventing the cables from being entangled.

[0049] At the same time, the cables are routed through the cable paths and path grooves of the radiator instead of being arranged on the periphery of the radiator, which can greatly save the limited space in the power tool housing.

[0050] In addition, through the above-mentioned arrangement, the radiator can not only dissipate heat for the electronic components in the housing, but also dissipate heat for the cables, thereby further improving the heat dissipation effect.

[0051] Figure 4 and Figure 5 The schematic structural diagram of the multifunctional radiator of the utility model in another embodiment is shown from different viewing angles.

[0052] like Figure 4 and Figure 5 As shown, in this embodiment, the multifunctional radiator also includes a base plate 1; and a plurality of heat sinks 2 vertically arranged on the base plate 1, wherein adjacent heat sinks 2 have accommodation spaces between them, and at least one of these accommodation spaces can form a cable path 31 for wiring. In addition, the heat sink 2 located at the end and the heat sink 20 located in the middle are provided with path grooves 21 for wiring, and the path grooves are connected to the cable path 31 so that the cables can pass therethrough.

[0053] In addition, if Figure 4 and Figure 5 As shown, the heat sink 2 is also provided with a fixing groove 5, which is used to constrain the cable in the height direction.

[0054] like Figure 6As shown, the third cable 300 is fixed on the heat sink through the fixing groove 5. Figure 6 In the example shown, the third cable does not pass through the cable path and the path groove, but is directly coiled from the periphery of the heat sink through the fixing groove 5. However, in other embodiments, the cable can also pass through the cable path and the path groove and be constrained and fixed by the fixing groove 5.

[0055] It should also be noted that in Figure 4 and Figure 5 In the illustrated embodiment, the clamping groove has a downwardly facing open portion, which, when matched with the PCB board, can form a closed hole for restraining the cable.

[0056] In other embodiments, the fixing groove may also be configured to have no opening at the lower end, that is, it is also feasible that the fixing groove is a closed hole arranged on the heat sink.

[0057] In addition, although Figure 4 and Figure 5 In the illustrated embodiment, the fastening groove is provided on the heat sink 2 at the end, but it should be noted that in other embodiments, the fastening groove may also be provided on the middle heat sink 20 .

[0058] In the embodiment of the utility model in which a fixing groove is provided, the fixing groove can play a role in firmly fixing the cable.

[0059] In some more specific embodiments, since overlong cables can be placed in the cable path in a zigzag folded manner for storage, the cable path serving as the storage space is preferably larger in volume than other cable paths.

[0060] For example, Figure 4 and Figure 5 As shown, the accommodating space formed by the radiator as a cable path may include a relatively large first accommodating space P2 and a relatively small second accommodating space P1, wherein the first accommodating space P2 can be used as a storage space for cables, and the second accommodating space can be used as a conventional cable path.

[0061] Of course, in other embodiments, the second accommodating space with a smaller volume can also be used as a storage space for cables as needed.

[0062] exist Figure 4 and Figure 5 In the example shown, the first accommodating space has a larger volume because the spacing between two adjacent heat sinks is larger than the spacing between other adjacent heat sinks. However, in other embodiments, the first accommodating space can also have a larger volume by setting the height of the heat sink forming the first accommodating space higher.

[0063] In addition, in some preferred embodiments of the present invention, in order to obtain a more optimal arrangement structure, the heat sinks are arranged parallel to each other.

[0064] Of course, in other optional implementations, the heat sinks may also be arranged non-parallel. In this case, adjacent heat sinks arranged non-parallel form an accommodating space.

[0065] In another embodiment of the present invention, Figure 7 As shown, the radiator also includes a base plate 1 , a heat sink, and further includes a baffle 6 extending outward from the heat sink 2 at the end. Preferably, the baffle 6 is arranged parallel to the base plate 1 .

[0066] like Figure 8 As shown, when the heat sink is provided with a baffle 6, when the heat sink is installed in the housing, it can provide protection for some protected electronic components 400 (such as capacitors) in the housing to prevent the protected electronic components 400 from being collided or falling. Fig. 9 As shown, the baffle plate can also serve as a support plate for some supported electronic components 500 , thereby providing stable support for the supported electronic components 500 .

[0067] In addition, in other embodiments of the present invention, Figure 7 and Fig.10 As shown, the radiator also includes a base plate 1 and heat sinks 2, and at least one of the accommodating spaces between adjacent heat sinks is formed as a cable path. In addition, a guide rib 7 is provided between at least two adjacent heat sinks, and the guide rib 7 extends upward in the height direction from the side portion of the base plate 1.

[0068] In some more specific embodiments, the extension height of the guide rib 7 is slightly lower than the height of the heat sink 2, and the guide rib 7 is slightly recessed inward relative to the side of the heat sink, thereby forming a groove for guiding the airflow to further improve the heat dissipation effect.

[0069] As a preferred embodiment, both left and right side portions of the bottom plate have guide ribs 7 .

[0070] exist Figure 7 and Fig.10 In the example, a guide rib 7 is provided between every two adjacent heat sinks 2. This arrangement can maximize the guiding effect on the airflow. However, it should be noted that in other embodiments of the utility model, guide ribs may not be provided between some adjacent heat sinks.

[0071] like Fig.11As shown, when the heat sink with guide ribs 7 is disposed in the housing 800 of the electric tool, the gas entering the housing through the air inlet 801 on the housing 800 can flow in the direction of the arrow under the guidance of the guide ribs 7, thereby further improving the heat dissipation effect of the radiator.

[0072] In another embodiment, the utility model also provides an electric tool with good heat dissipation and orderly internal structure.

[0073] Fig.12 The utility model shows an electric tool provided with a multifunctional heat sink.

[0074] Fig.13 The figure shows the setting state of the multifunctional heat sink described in the utility model on the PCB board.

[0075] like Fig.12 and Fig.13 As shown, the electric tool is internally provided with a heat sink 600 as described in the various embodiments above. The multifunctional heat sink 600 is disposed in a housing 800 of the electric tool and is connected to a circuit board 900 (PCB board) in the housing.

[0076] In some more specific embodiments, the bottom plate 1 of the multifunctional heat sink can be screwed onto the circuit board 900 by screws or bolts. In some other embodiments, the bottom plate can also be bonded onto the circuit board 900 by gluing.

[0077] It should also be noted that the heat sink of the present invention can be made of conventional non-conductive materials with good thermal conductivity, such as thermally conductive ceramics or similar materials.

[0078] It can be seen that the multifunctional radiator described in the utility model can not only achieve good heat dissipation function, but also achieve other functions at the same time, such as orderly arrangement and fixation of cables, stable placement of other electronic components, further improvement of heat dissipation function, and protection of other electronic components. The multifunctional radiator described in the utility model not only achieves multiple functions, but also saves installation space in the limited power tool housing, thereby improving the user experience of the power tool.

[0079] It should be noted that the prior art part in the protection scope of the utility model is not limited to the embodiments given in the application documents. All prior art that does not contradict the scheme of the utility model, including but not limited to prior patent documents, prior public publications, prior public uses, etc., can be included in the protection scope of the utility model.

[0080] In addition, the combination of the various technical features in this case is not limited to the combination described in the claims of this case or the combination described in the specific embodiments. All technical features recorded in this case can be freely combined or combined in any way unless there is a contradiction between them.

[0081] It should also be noted that the above-listed embodiments are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and similar changes or modifications made therewith are directly derived or easily associated with the contents disclosed by those skilled in the art from the present invention, and should all fall within the protection scope of the present invention.

Claims

1. A radiator, characterized in that: include: Bottom plate (1); A plurality of heat sinks (2, 20) vertically arranged on a bottom plate, wherein adjacent heat sinks have accommodation spaces (P) between them, at least one accommodation space is formed as a cable path (31), and at least one of the heat sinks is also provided with a path groove (21), the path groove being in communication with the cable path; At least one of the heat sinks is also provided with a fixing groove (5) for restraining the cable in the height direction.

2. The heat sink according to claim 1, characterized in that The clamping groove (5) has a downwardly open portion; or the clamping groove is constructed as a closed hole.

3. The heat sink according to claim 1, characterized in that The bottom plate is provided with a hollow portion (11), and the hollow portion is communicated with the path groove and / or the cable path.

4. The heat sink according to claim 1, characterized in that The accommodating space comprises a first accommodating space (P2) and a second accommodating space (P1) whose volume is larger than that of the first accommodating space.

5. The heat sink according to claim 1, characterized in that The heat sinks (2, 20) are arranged parallel to each other.

6. The heat sink according to claim 1, characterized in that It also includes a baffle, which is arranged to extend outward from the heat sink (2) at the end.

7. The heat sink according to claim 6, characterized in that The baffle (6) is parallel to the bottom plate (1).

8. The heat sink according to claim 1, characterized in that A guide rib (7) is provided between at least two adjacent heat sinks, and the guide rib extends upward in the height direction from the side edge of the bottom plate.

9. The heat sink according to claim 8, characterized in that The guide rib (7) is slightly recessed inward relative to the side of the heat sink.

10. An electric tool, characterized in that: It comprises a heat sink (600) as claimed in any one of claims 1 to 9, wherein the heat sink is arranged in a housing (800) of the electric tool and connected to a circuit board (900) in the housing.

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