Heat dissipation device convenient for replacing silicone grease and heat dissipation system

Abstract

The utility model relates to a heat dissipation device and a heat dissipation system facilitating replacement of silicone grease. The heat dissipation device comprises a base unit, a sliding unit, a passive heat dissipation unit, a supporting unit, a limiting unit and a locking unit. The base unit is arranged at the bottom of the power device; the sliding unit is arranged at the top of the base unit; the passive heat dissipation unit is arranged at the top of the base unit and is in sliding connection with the sliding unit; the supporting unit is movably arranged in the sliding unit and is in sliding connection and limiting connection with the passive heat dissipation unit; the limiting unit is arranged in the middle of the sliding unit and is in limiting connection with the supporting unit; the locking unit is detachably connected with the base unit, the passive heat dissipation unit and the power device. The radiator has the advantages that the supporting unit capable of sliding up and down along the sliding unit is arranged between the passive radiating unit and the power device, so that the equipment maintenance efficiency is improved, and the problems of low maintenance efficiency and the like caused by re-alignment when heat-conducting silicone grease is replaced by the existing radiator are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of electronic equipment, in particular to a heat dissipation device and a heat dissipation system which are convenient for replacing silicone grease. Background Art

[0002] Thermal grease is a highly thermally conductive material, typically composed of silicone oil and fillers. It fills the gap between heat-dissipating components (such as CPUs) and heat sinks in electronic products, reducing thermal resistance and improving heat transfer efficiency. It effectively draws heat away from the heat-dissipating components, allowing it to flow more smoothly to the heat sink, where it is then dissipated, thereby lowering the overall temperature.

[0003] Over time, certain components in thermal grease may lose their effectiveness due to high temperatures, oxidation, or other environmental factors, leading to a decrease in thermal conductivity. This means the grease can no longer effectively transfer heat from the CPU, or other heat source, to the heat sink, compromising overall cooling performance. After a period of use, thermal grease may dry out and harden due to evaporation or chemical reactions. This change reduces the grease's fluidity and filling capacity, preventing it from completely filling the tiny gaps between the CPU and heat sink, increasing thermal resistance and reducing cooling efficiency.

[0004] In humid or dusty environments, the grease needs to be replaced more frequently. Humidity and dust can affect the thermal conductivity of the grease, resulting in a decrease in heat dissipation. Therefore, more frequent replacement is required to maintain stable heat dissipation.

[0005] When replacing the silicone grease between electronic components and the radiator, it is often necessary to disassemble the entire radiator. Reinstalling the radiator requires realignment. Displacement may occur during alignment, causing uneven application of the thermal grease and low maintenance efficiency.

[0006] Currently, no effective solution has been proposed for the problems in the related art such as the need to re-align the existing heat sink when replacing the thermal grease and the low maintenance efficiency. Utility Model Content

[0007] The purpose of the utility model is to address the deficiencies in the prior art and provide a heat dissipation device and a heat dissipation system that are easy to replace silicone grease, so as to solve the problems existing in the related art such as the need to re-align and maintain the low efficiency of the existing radiator when replacing the thermal conductive silicone grease.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] In a first aspect, a heat dissipation device is provided for facilitating replacement of silicone grease, comprising:

[0010] A base unit, which is provided at the bottom of the power device and is used to install and fix the power device;

[0011] a sliding unit, the sliding unit being arranged on the top of the base unit;

[0012] a passive heat dissipation unit, the passive heat dissipation unit being disposed on the top of the base unit and located on the top of the power device, the passive heat dissipation unit being slidably connected to the sliding unit and being used to absorb and conduct heat from the power device;

[0013] a supporting unit, the supporting unit being movably disposed inside the sliding unit and being slidably connected and position-limitedly connected to the passive heat dissipation unit, the outer edge of the supporting unit being arranged to protrude from the outer edge of the sliding unit, and being used to support the passive heat dissipation unit when the passive heat dissipation unit is separated from the power device;

[0014] a limiting unit, the limiting unit being arranged in the middle of the sliding unit and being connected to the supporting unit in a limiting manner, and being used to define the relative position of the supporting unit and the sliding unit when being connected to the supporting unit in a limiting manner;

[0015] A locking unit is detachably connected to the base unit, the passive heat dissipation unit, and the power device, and is used to tightly abut the power device against the passive heat dissipation unit.

[0016] In some of these embodiments, the base unit comprises:

[0017] A plurality of base elements, wherein the plurality of base elements are distributed and arranged at the bottom of the power device, and the sliding unit is arranged on the top of the base element;

[0018] A plurality of first locking elements are respectively arranged on the corresponding base elements and are respectively detachably connected to the locking units.

[0019] In some embodiments, the sliding unit includes:

[0020] a plurality of first sliding elements, which are distributed on the top of the base unit and are respectively slidably connected to the support units;

[0021] A plurality of second sliding elements are respectively arranged on the side of the corresponding first sliding element, and are respectively communicated with the corresponding first sliding element and the limiting unit, and are respectively slidably connected with the supporting unit.

[0022] In some embodiments, the passive heat dissipation unit includes:

[0023] a passive heat dissipation element, the passive heat dissipation element being movably disposed on the top of the base unit and located on top of the power device, for absorbing and conducting heat from the power device;

[0024] a plurality of third sliding elements, wherein the plurality of third sliding elements are distributed on the passive heat dissipation element and are respectively slidably connected to the sliding units;

[0025] a plurality of fourth sliding elements, wherein the plurality of fourth sliding elements are distributed on the passive heat dissipation element, communicate with the corresponding third sliding elements, and are respectively slidably connected to the support unit;

[0026] A plurality of second locking elements are distributed on the passive heat dissipation element and are respectively detachably connected to the locking unit.

[0027] In some embodiments, the support unit includes:

[0028] a plurality of fifth sliding elements, each of which is movably disposed inside the sliding unit and slidably connected to the passive heat dissipation unit;

[0029] A plurality of supporting elements are respectively arranged on the side of the corresponding fifth sliding element, and are respectively slidably connected to the sliding unit and the passive heat dissipation unit, and are respectively limitatively connected to the limiting unit. The outer edge of the supporting element protrudes from the outer edge of the sliding unit and is used to support the passive heat dissipation unit when the passive heat dissipation unit is separated from the power device.

[0030] In some embodiments, the limiting unit includes:

[0031] A plurality of first limiting elements are respectively arranged in the middle of the sliding unit and are respectively connected to the supporting unit for limiting the relative position of the supporting unit and the sliding unit when connected to the supporting unit.

[0032] In some embodiments, the limiting unit further includes:

[0033] A plurality of second limiting elements are respectively arranged in the middle of the sliding unit, and are located at the bottom of the corresponding first limiting element, and are connected with the corresponding first limiting element, and are respectively connected with the supporting unit to prevent the supporting unit from separating from the first limiting element.

[0034] In some embodiments, the locking unit includes:

[0035] A plurality of third locking elements are respectively detachably connected to the base unit, the passive heat dissipation unit, and the power device, so as to make the power device tightly abut against the passive heat dissipation unit.

[0036] In a second aspect, a heat dissipation system is provided, comprising:

[0037] The heat dissipation device according to the first aspect;

[0038] An active heat dissipation device is arranged on the top of the passive heat dissipation unit of the heat dissipation device, and is used to reduce the temperature of the passive heat dissipation unit.

[0039] In some embodiments, the active heat dissipation device includes:

[0040] a refrigeration unit, the refrigeration unit being arranged on top of the passive heat dissipation unit and being used to reduce the temperature of the passive heat dissipation unit;

[0041] a heat conducting unit, wherein a first end of the heat conducting unit is disposed adjacent to the refrigeration unit and is configured to absorb and conduct heat generated by the refrigeration unit;

[0042] An active heat dissipation unit is provided at the second end of the heat conduction unit and is located outside the power device, and is used for dissipating heat from the heat conduction unit.

[0043] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0044] The utility model discloses a heat dissipation device and a heat dissipation system which are convenient for replacing silicone grease. A supporting unit which can slide up and down along a sliding unit is provided between a passive heat dissipation unit and a power device. The supporting unit supports the heat dissipation unit when the passive heat dissipation unit is separated from the power device. The silicone grease covering the surface of the power device can be replaced without removing the passive heat dissipation unit, thereby improving the efficiency of maintenance of the equipment and solving the problem of low maintenance efficiency due to the need to realign the thermal grease when replacing the existing radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic diagram of a heat dissipation device according to an embodiment of the present utility model;

[0046] Figure 2 is a schematic diagram of a sliding unit according to an embodiment of the present utility model;

[0047] Figure 3 is a schematic diagram of a base unit according to an embodiment of the present utility model;

[0048] Figure 4 is a schematic diagram of a passive heat dissipation unit according to an embodiment of the present utility model;

[0049] Figure 5 is a schematic diagram of a support unit according to an embodiment of the present utility model;

[0050] Figure 6 is a schematic diagram of a limiting unit according to an embodiment of the present utility model;

[0051] Figure 7 is a schematic diagram of a locking unit according to an embodiment of the present utility model;

[0052] Figure 8 is a schematic diagram of a heat dissipation system according to an embodiment of the present utility model;

[0053] Figure 9 Schematic diagram of an active heat dissipation device according to an embodiment of the present invention.

[0054] The accompanying drawings are numerals 100, heat dissipation device;

[0055] 110. Base unit; 111. Base element; 112. First locking element;

[0056] 120. Sliding unit; 121. First sliding element; 122. Second sliding element;

[0057] 130, passive heat dissipation unit; 131, passive heat dissipation element; 132, third sliding element; 133, fourth sliding element; 134, second locking element;

[0058] 140. Support unit; 141. Fifth sliding element; 142. Support element;

[0059] 150, limiting unit; 151, first limiting element; 152, second limiting element;

[0060] 160. Locking unit; 161. Third locking element;

[0061] 200, active heat dissipation device; 210, refrigeration unit; 220, heat conduction unit; 230, active heat dissipation unit. DETAILED DESCRIPTION

[0062] 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.

[0063] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0064] The utility model will be further described below in combination with the drawings and specific embodiments, but not as the limitation of the utility model.

[0065] Embodiment 1

[0066] This embodiment relates to the heat dissipation device of the utility model.

[0067] One illustrative embodiment of the utility model, as Figure 1 shown, a heat dissipation device 100 for precision instrument, including base unit 110, sliding unit 120, passive heat dissipation unit 130, support unit 140, limiting unit 150 and locking unit 160, wherein, base unit 110 sets up at the bottom of power device, for installing and fixing power device, sliding unit 120 sets up at the top of base unit 110, passive heat dissipation unit 130 sets up at the top of base unit 110, and is located at the top of power device, passive heat dissipation unit 130 and sliding unit 120 sliding connection, for absorbing and conducting the heat of power device, support unit 140 movably sets up in the inside of sliding unit 120, and with passive heat dissipation unit 130 sliding connection, limiting connection, the outer edge of support unit 140 is set out from the outer edge of sliding unit 120, for supporting passive heat dissipation unit 130 when passive heat dissipation unit 130 and power device separate, limiting unit 150 sets up in the middle of sliding unit 120, and with support unit 140 limiting connection, for defining the relative position of support unit 140 and sliding unit 120 under the condition of limiting connection with support unit 140, locking unit 160 respectively with base unit 110, passive heat dissipation unit 130, power device carries out detachable connection, for making power device and passive heat dissipation unit 130 close abutment.

[0068] As Figure 2 shown, base unit 110 includes several base elements 111 and several first locking elements 112, wherein, several base elements 111 are distributed and set up at the bottom of power device, and the top of base element 111 is provided with sliding unit 120, several first locking elements 112 are respectively set up in corresponding base element 111, and are respectively detachably connected with locking unit 160.

[0069] Preferably, the base element 111 is at least three.

[0070] Preferably, several base elements 111 are arrayed.

[0071] In some embodiments, the cross section of the base element 111 is rectangular.

[0072] In some embodiments, the base element 111 includes, but is not limited to, a mounting base.

[0073] The number of the first locking elements 112 matches the number of the base elements 111. Generally, the number of the first locking elements 112 is an integer multiple of the number of the base elements 111, that is, each base element 111 is provided with at least one first locking element 112.

[0074] In the case that each base element 111 is provided with a plurality of first locking elements 112 , the plurality of first locking elements 112 are distributed on the base element 111 .

[0075] In some embodiments, the cross-section of the first locking element 112 is circular.

[0076] In some embodiments, the first locking element 112 is a first threaded hole.

[0077] like Figure 3 As shown, the sliding unit 120 includes a plurality of first sliding elements 121 and a plurality of second sliding elements 122. The plurality of first sliding elements 121 are distributed on the top of the base unit 110 and are respectively slidably connected to the support unit 140; the plurality of second sliding elements 122 are respectively disposed on the sides of the corresponding first sliding elements 121, and are respectively connected to the corresponding first sliding elements 121 and the limiting unit 150, and are respectively slidably connected to the support unit 140.

[0078] Specifically, a plurality of first sliding elements 111 are respectively disposed on the upper portion of the corresponding base element 111 .

[0079] In some embodiments, the connection method between the first sliding element 121 and the base element 111 includes but is not limited to welding and integral molding.

[0080] The number of the first sliding elements 121 matches the number of the base elements 111. Generally, the number of the first sliding elements 121 is an integer multiple of the number of the base elements 111, that is, the first sliding elements 121 correspond to the base elements 111 in a one-to-one manner.

[0081] In the case that each base element 111 is provided with a plurality of first sliding elements 121 , the plurality of first sliding elements 121 are distributed on the base element 111 .

[0082] In some embodiments, the number of the first sliding elements 121 is equal to the number of the base elements 111 , that is, there is a one-to-one correspondence between the first sliding elements 121 and the base elements 111 .

[0083] In some embodiments, the cross section of the first sliding element 121 is annular.

[0084] In some embodiments, the first sliding element 121 is a first sliding rod.

[0085] The second sliding element 122 is disposed through the top surface, the bottom surface, and the side surfaces of the first sliding element 121 .

[0086] The number of the second sliding elements 122 matches the number of the first sliding elements 121. Generally, the number of the second sliding elements 122 is equal to the number of the first sliding elements 121, that is, the second sliding elements 122 correspond to the first sliding elements 121 one by one.

[0087] The size of the second sliding element 122 matches the size of the first sliding element 121. Generally, the axial size (e.g., height) of the second sliding element 122 is equal to the axial size (e.g., height) of the first sliding element 121, and the radial size (e.g., width) of the second sliding element 122 is smaller than the inner diameter of the first sliding element 121.

[0088] In some embodiments, the cross-section of the second sliding element 122 is rectangular.

[0089] In some embodiments, the second sliding element 122 is a sliding groove.

[0090] like Figure 4 As shown, the passive heat dissipation unit 130 includes a passive heat dissipation element 131, a plurality of third sliding elements 132, a plurality of fourth sliding elements 133, and a plurality of second locking elements 134. The passive heat dissipation element 131 is movably disposed on the top of the base unit 110 and is located on top of the power device, for absorbing and conducting heat from the power device; the plurality of third sliding elements 132 are distributed on the passive heat dissipation element 131 and are respectively slidably connected to the sliding unit 120; the plurality of fourth sliding elements 133 are distributed on the passive heat dissipation element 131 and communicate with corresponding third sliding elements 132 and are respectively slidably connected to the support unit 140; and the plurality of second locking elements 134 are distributed on the passive heat dissipation element 131 and are respectively detachably connected to the locking unit 160.

[0091] Specifically, the passive heat dissipation element 131 is movably disposed on the top of the base element 111 ; and a plurality of third sliding elements 132 are slidably connected to corresponding first sliding elements 121 .

[0092] In some embodiments, the passive heat dissipation element 131 has a rectangular cross-section.

[0093] The size of the passive heat dissipation element 131 matches the size of the first sliding element 121. Generally, the thickness (or height) of the passive heat dissipation element 131 is smaller than the axial dimension (eg, height) of the first sliding element 121.

[0094] In some embodiments, the passive heat dissipation element 131 is made of metal with high thermal conductivity, including but not limited to copper and aluminum.

[0095] In some embodiments, the passive heat dissipation element 131 is a metal heat conductive sheet.

[0096] The third sliding element 132 is disposed through the top and bottom surfaces of the passive heat dissipation element 131 .

[0097] The number of the third sliding elements 132 matches the number of the first sliding elements 121. Generally, the number of the third sliding elements 132 is equal to the number of the first sliding elements 121, that is, the third sliding elements 132 correspond to the first sliding elements 121 one by one.

[0098] The third sliding elements 132 are arranged in an array on the passive heat dissipation element 131. When viewed from above, the centers of the third sliding elements 132 are respectively coincident with the centers of the corresponding first sliding elements 121.

[0099] The size of the third sliding element 132 matches the size of the first sliding element 121. Generally, the radial size (eg, diameter) of the third sliding element 132 is not less than the outer diameter of the first sliding element 121.

[0100] In some embodiments, the cross-section of the third sliding element 132 is circular.

[0101] In some embodiments, the third sliding element 132 is a first sliding hole.

[0102] The fourth sliding element 133 is disposed through the top and bottom surfaces of the passive heat dissipation element 131 .

[0103] The number of the fourth sliding elements 133 matches the number of the third sliding elements 132. Generally, the number of the fourth sliding elements 133 is equal to the number of the second sliding elements 122, that is, the fourth sliding elements 133 correspond to the second sliding elements 122 one by one.

[0104] When viewed from a top view, the axes of the fourth sliding elements 133 are respectively arranged to coincide with the axes of the corresponding second sliding elements 122 .

[0105] The size of the fourth sliding element 133 matches the size of the third sliding element 132. Generally, the number of the fourth sliding elements 133 is equal to the number of the third sliding elements 132, that is, the fourth sliding elements 133 correspond to the third sliding elements 132 one by one.

[0106] The size of the fourth sliding element 133 matches the size of the second sliding element 122. Generally, the radial size (eg, width) of the fourth sliding element 133 is not less than the radial size (eg, width) of the second sliding element 122.

[0107] In some embodiments, the fourth sliding element 133 has a rectangular cross-section.

[0108] In some embodiments, the fourth sliding element 133 is a second sliding hole.

[0109] The number of the second locking elements 134 matches the number of the first locking elements 112. Generally, the number of the second locking elements 134 is equal to the number of the first locking elements 112, that is, the second locking elements 134 and the first locking elements 112 have a one-to-one correspondence.

[0110] A plurality of second locking elements 134 are disposed in an array on the passive heat dissipation element 131 .

[0111] In some embodiments, the cross-section of the second locking element 134 is circular.

[0112] In some embodiments, the second locking element 134 is a second threaded hole.

[0113] like Figure 5 As shown, the support unit 140 includes a plurality of fifth sliding elements 141 and a plurality of support elements 142. The plurality of fifth sliding elements 141 are movably disposed within the sliding unit 120 and are slidably connected to the passive heat dissipation unit 130. The plurality of support elements 142 are disposed on the sides of corresponding fifth sliding elements 141, and are slidably connected to the sliding unit 120 and the passive heat dissipation unit 130, respectively, and are also positionally connected to the limiting unit 150. The outer edges of the support elements 142 protrude from the outer edges of the sliding unit 120, and are used to support the passive heat dissipation unit 130 when the passive heat dissipation unit 130 is separated from the power device.

[0114] Specifically, several fifth sliding elements 141 are respectively slidably connected to the corresponding first sliding elements 121; several supporting elements 142 are respectively slidably connected to the corresponding second sliding elements 122, the corresponding fourth sliding elements 133, and the passive heat dissipation element 131.

[0115] The number of the fifth sliding elements 141 matches the number of the base elements 111. Generally, the number of the fifth sliding elements 141 is equal to the number of the base elements 111, that is, the fifth sliding elements 141 correspond to the base elements 111 one to one.

[0116] The size of the fifth sliding element 141 matches that of the first sliding element 121 . Generally, the radial size of the fifth sliding element 141 is not larger than that of the first sliding element 121 , and the axial size of the fifth sliding element 141 is smaller than that of the first sliding element 121 .

[0117] The size of the fifth sliding element 141 matches the size of the second sliding element 122. Generally, the radial size (eg, diameter) of the fifth sliding element 141 is greater than the radial size of the second sliding element 122.

[0118] In some embodiments, the cross-section of the fifth sliding element 141 is circular.

[0119] In some embodiments, the fifth sliding element 141 is a second sliding rod.

[0120] In some embodiments, the supporting element 142 and the fifth sliding element 141 are integrally formed.

[0121] The number of the supporting elements 142 matches the number of the fifth sliding elements 141. Generally, the number of the supporting elements 142 is equal to the number of the fifth sliding elements 141, that is, the supporting elements 142 and the fifth sliding elements 141 correspond one to one.

[0122] The size of the support element 142 matches the size of the fifth sliding element 141. Generally, the axial size (such as height) of the support element 142 is equal to the axial size (such as height) of the fifth sliding element 141.

[0123] The size of the support element 142 matches the size of the second sliding element 122. Generally, the thickness of the support element 142 is not greater than the radial dimension (eg, width) of the second sliding element 122.

[0124] The size of the support element 142 matches the size of the fourth sliding element 133. Generally, the thickness of the support element 142 is no greater than the radial dimension (e.g., width) of the fourth sliding element 133, and the radial dimension (e.g., width) of the support element 142 is smaller than the axial dimension (e.g., length) of the fourth sliding element 133.

[0125] In some embodiments, the support element 142 is a position-limiting support rod.

[0126] like Figure 6 As shown, the limiting unit 150 includes a plurality of first limiting elements 151. The plurality of first limiting elements 151 are respectively disposed in the middle of the sliding unit 120 and are respectively connected to the support unit 140 for limiting the relative position of the support unit 140 and the sliding unit 120 when connected to the support unit 140.

[0127] Specifically, a plurality of first limiting elements 151 are respectively disposed at the middle portion of the corresponding first sliding element 121 , communicated with the corresponding second sliding element 122 , and are position-limitingly connected to the corresponding supporting element 142 .

[0128] The first limiting element 151 is disposed through the outer surface of the first sliding element 121 .

[0129] The size of the first limiting element 151 matches the size of the first sliding element 121. Generally, the axial size (such as height) of the first limiting element 151 is smaller than the axial size (such as height) of the base element 111.

[0130] The size of the first limiting element 151 matches the size of the support element 142. Generally, the axial dimension (e.g., height) of the first limiting element 151 is not less than the axial dimension (e.g., height) of the support element 142, and the radial dimension (e.g., arc length) of the first limiting element 151 is greater than the thickness of the support element 142.

[0131] The number of the first limiting elements 151 matches the number of the first sliding elements 121. Generally, the number of the first limiting elements 151 is equal to the number of the first sliding elements 121, that is, the first limiting elements 151 and the first sliding elements 121 have a one-to-one correspondence.

[0132] In some embodiments, the cross section of the first limiting element 151 is fan-shaped.

[0133] In some embodiments, the first limiting element 151 is a transverse limiting groove.

[0134] Furthermore, the limiting unit 150 also includes a plurality of second limiting elements 152. The plurality of second limiting elements 152 are respectively disposed in the middle of the sliding unit 120 and at the bottom of the corresponding first limiting elements 151. The plurality of second limiting elements 152 are communicated with the corresponding first limiting elements 151 and are respectively connected to the support unit 140 in a limiting manner to prevent the support unit 140 from separating from the first limiting elements 151.

[0135] Specifically, a plurality of second limiting elements 152 are respectively disposed at the middle portion of the first sliding element 121 .

[0136] The second limiting element 152 is disposed through the outer wall and the inner wall of the first sliding element 121 .

[0137] The number of the second limiting elements 152 matches the number of the first limiting elements 151. Generally, the number of the second limiting elements 152 is equal to the number of the first limiting elements 151, that is, the second limiting elements 152 and the first limiting elements 151 have a one-to-one correspondence.

[0138] The size of the second limiting element 152 matches the size of the first limiting element 151. Generally, the radial dimension (such as the width) of the second limiting element 152 is smaller than the arc length of the first limiting element 151.

[0139] The size of the second limiting element 152 matches the size of the support element 142. Generally, the radial dimension (such as the width) of the second limiting element 152 is greater than the radial dimension (such as the thickness) of the support element 142, and the height of the second limiting element 152 is smaller than the height of the support element 142.

[0140] In some embodiments, the second limiting element 152 is a longitudinal limiting groove.

[0141] As shown in Figure 7 The locking unit 160 includes a plurality of third locking elements 161. The plurality of third locking elements 161 are respectively detachably connected with the base unit 110, the passive heat dissipation unit 130, and the power device, so as to make the power device tightly abut against the passive heat dissipation unit 130.

[0142] Specifically, the plurality of third locking elements 161 are respectively detachably connected with the corresponding first locking elements 112 and the corresponding second locking elements 134.

[0143] The number of the third locking elements 161 matches the number of the first locking elements 112 (the second locking elements 134). Generally, the number of the third locking elements 161 is equal to the number of the first locking elements 112 (the second locking elements 134), that is, the third locking elements 161 correspond to the first locking elements 112 (the second locking elements 134) one by one.

[0144] In some embodiments, the third locking elements 161 include, but are not limited to, screws.

[0145] The use method of the utility model is as follows:

[0146] (I) use state

[0147] The third locking elements 161 are respectively screwed with the first locking elements 112 and the second locking elements 134, at this time, the bottom surface of the passive heat dissipation unit 130 abuts against the top surface (coated with heat dissipation silicone grease) of the power device, and the second sliding element 122 and the support element 142 are respectively located at the bottom of the first sliding element 121 and the second sliding element 122.

[0148] (II) replace heat dissipation silicone grease

[0149] The third locking elements 161 are detached from the first locking elements 112 and the second locking elements 134;

[0150] Slide the passive heat dissipation element 131 upward along the first sliding element 121 until the bottom surface of the passive heat dissipation element 131 is located on the top of the first limiting element 151;

[0151] Slide the fourth sliding element 133 and the supporting element 142 upward along the first sliding element 121 and the second sliding element 122 respectively until the bottom end of the supporting element 142 coincides with the bottom end of the first limiting element 151. Rotate the supporting element 142 into the interior of the first limiting element 151 to secure the supporting element 142. At this point, the top end of the supporting element 142 abuts against the bottom surface of the passive heat dissipation element 131, leaving an operating space between the passive heat dissipation element 131 and the power device.

[0152] After replacing the thermal grease on the surface of the power device, slide the fourth sliding element 133 and the supporting element 142 to the bottom of the first sliding element 121, slide the passive heat dissipation element 131 downward along the first sliding element 121, and tighten the third locking element 161.

[0153] The advantage of the present invention is that, by arranging a support unit that can slide up and down along the sliding unit between the passive heat dissipation unit and the power device, the heat dissipation unit is supported when the passive heat dissipation unit is separated from the power device, and the silicone grease covering the surface of the power device can be replaced without disassembling the passive heat dissipation unit, thereby improving the efficiency of maintenance equipment and solving the problem of low maintenance efficiency due to the need to re-align the thermal grease when replacing the existing radiator.

[0154] Example 2

[0155] This embodiment relates to the heat dissipation system of the present utility model.

[0156] like Figure 8 As shown, a heat dissipation system includes the heat dissipation device 100 and the active heat dissipation device 200 as described in Example 1. The active heat dissipation device 200 is arranged on the top of the passive heat dissipation unit 130 of the heat dissipation device 100 to reduce the temperature of the passive heat dissipation unit 130.

[0157] like Figure 9 As shown, the active heat dissipation device 200 includes a cooling unit 210, a heat transfer unit 220, and an active heat dissipation unit 230. The cooling unit 210 is disposed on top of the passive heat dissipation unit 130. The first end of the heat transfer unit 220 is disposed adjacent to the cooling unit 210 to absorb and conduct heat generated by the cooling unit 210. The active heat dissipation unit 230 is disposed at the second end of the heat transfer unit 220 and is located outside the power device to dissipate heat from the heat transfer unit 220.

[0158] Specifically, the refrigeration unit 210 is disposed on top of the passive heat dissipation element 131 .

[0159] In some embodiments, the connection between the refrigeration unit 210 and the passive heat dissipation element 131 includes, but is not limited to, screw connection.

[0160] In some embodiments, the refrigeration unit 210 includes, but is not limited to, a semiconductor refrigeration sheet.

[0161] The number of the plurality of pipe units 220 is several. The plurality of pipe units 220 are arranged at intervals.

[0162] In some embodiments, the heat conduction unit 220 includes, but is not limited to, a metal heat conduction pipe.

[0163] In some embodiments, the active heat dissipation unit 230 includes, but is not limited to, a heat dissipation fan.

[0164] The use method of the utility model is as follows:

[0165] The refrigeration end of the refrigeration unit 210 reduces the temperature of the passive heat dissipation element 131, the heat of the heat dissipation end of the refrigeration unit 210 is transmitted to the shell of the power device through the heat conduction unit 220, and the heat of the heat conduction unit 220 is taken away through the active heat dissipation unit 230.

[0166] The above is only the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model, and those skilled in the art should realize that the obtained scheme of equivalent replacement and obvious change of the utility model specification and drawing content should be included in the protection scope of the utility model.

Claims

1. A heat dissipation device that is easy to replace silicone grease, characterized in that: include: A base unit, which is provided at the bottom of the power device and is used to install and fix the power device; a sliding unit, the sliding unit being arranged on the top of the base unit; a passive heat dissipation unit, the passive heat dissipation unit being disposed on the top of the base unit and located on the top of the power device, the passive heat dissipation unit being slidably connected to the sliding unit and being used to absorb and conduct heat from the power device; a supporting unit, the supporting unit being movably disposed inside the sliding unit and being slidably connected and position-limitedly connected to the passive heat dissipation unit, the outer edge of the supporting unit being arranged to protrude from the outer edge of the sliding unit, and being used to support the passive heat dissipation unit when the passive heat dissipation unit is separated from the power device; a limiting unit, the limiting unit being arranged in the middle of the sliding unit and being connected to the supporting unit in a limiting manner, and being used to define the relative position of the supporting unit and the sliding unit when being connected to the supporting unit in a limiting manner; A locking unit is detachably connected to the base unit, the passive heat dissipation unit, and the power device, and is used to tightly abut the power device against the passive heat dissipation unit.

2. The heat dissipation device according to claim 1, characterized in that: The base unit comprises: A plurality of base elements, wherein the plurality of base elements are distributed and arranged at the bottom of the power device, and the sliding unit is arranged on the top of the base element; A plurality of first locking elements are respectively arranged on the corresponding base elements and are respectively detachably connected to the locking units.

3. The heat dissipation device according to claim 1, characterized in that: The sliding unit includes: a plurality of first sliding elements, which are distributed on the top of the base unit and are respectively slidably connected to the support units; A plurality of second sliding elements are respectively arranged on the side of the corresponding first sliding element, and are respectively communicated with the corresponding first sliding element and the limiting unit, and are respectively slidably connected with the supporting unit.

4. The heat dissipation device according to claim 1, wherein: The passive heat dissipation unit comprises: A passive heat dissipation element, the passive heat dissipation element being movably disposed on the top of the base unit and located on top of the power device, for absorbing and conducting heat from the power device; a plurality of third sliding elements, wherein the plurality of third sliding elements are distributed on the passive heat dissipation element and are respectively slidably connected to the sliding units; a plurality of fourth sliding elements, wherein the plurality of fourth sliding elements are distributed on the passive heat dissipation element, communicate with the corresponding third sliding elements, and are respectively slidably connected to the support units; A plurality of second locking elements are distributed on the passive heat dissipation element and are respectively detachably connected to the locking unit.

5. The heat dissipation device according to claim 1, characterized in that: The support unit comprises: a plurality of fifth sliding elements, each of which is movably disposed inside the sliding unit and is slidably connected to the passive heat dissipation unit; A plurality of supporting elements are respectively arranged on the side of the corresponding fifth sliding element, and are respectively slidably connected to the sliding unit and the passive heat dissipation unit, and are respectively limitatively connected to the limiting unit. The outer edge of the supporting element protrudes from the outer edge of the sliding unit and is used to support the passive heat dissipation unit when the passive heat dissipation unit is separated from the power device.

6. The heat dissipation device according to claim 1, characterized in that: The limiting unit includes: A plurality of first limiting elements are respectively arranged in the middle of the sliding unit and are respectively connected to the supporting unit for limiting the relative position of the supporting unit and the sliding unit when connected to the supporting unit.

7. The heat dissipation device according to claim 6, characterized in that: The limiting unit further includes: A plurality of second limiting elements are respectively arranged in the middle of the sliding unit, and are located at the bottom of the corresponding first limiting element, and are connected with the corresponding first limiting element, and are respectively connected with the supporting unit to prevent the supporting unit from separating from the first limiting element.

8. The heat dissipation device according to claim 1, wherein: The locking unit comprises: A plurality of third locking elements are respectively detachably connected to the base unit, the passive heat dissipation unit, and the power device, so as to make the power device tightly abut against the passive heat dissipation unit.

9. A heat dissipation system for precision electronic instruments, characterized in that: include: The heat dissipation device according to any one of claims 1 to 8; An active heat dissipation device is arranged on the top of the passive heat dissipation unit of the heat dissipation device, and is used to reduce the temperature of the passive heat dissipation unit.

10. The heat dissipation system according to claim 9, characterized in that: The active heat dissipation device comprises: a refrigeration unit, the refrigeration unit being arranged on top of the passive heat dissipation unit and being used to reduce the temperature of the passive heat dissipation unit; a heat conducting unit, wherein a first end of the heat conducting unit is disposed adjacent to the refrigeration unit and is configured to absorb and conduct heat generated by the refrigeration unit; An active heat dissipation unit is provided at the second end of the heat conduction unit and is located outside the power device, and is used for dissipating heat from the heat conduction unit.

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