Cooling device for refrigeration assembly of detector

Abstract

The utility model provides a detector refrigeration assembly heat dissipation device which comprises a base and is characterized in that the top face of the base is connected with a detector refrigeration assembly through an adapter plate, a first groove with an upward opening is formed in the base, and through holes are formed in the two ends of the bottom of the first groove respectively. A second groove with a downward opening is formed in the bottom face, connected with the top face of the base, of the adapter plate, the second groove and the first groove are connected in a matched mode to form a heat dissipation cavity, two heat dissipation blocks connected with two through holes in the bottom of the first groove in a matched mode are arranged at the bottom of the base, and a fan is arranged on each heat dissipation block. And the rotation direction of the fan on one heat dissipation block is opposite to that of the fan on the other heat dissipation block. Heat dissipation is carried out in a passive and active heat dissipation combined mode, the active heat dissipation mode is a heat convection mode, the working temperature of the detector refrigerating machine is monitored mainly through the temperature sensor, the fans with opposite rotation directions are controlled to enable air to flow in the heat dissipation cavity, and the heat dissipation capacity is enhanced. The detector refrigerating assembly can stably work in a normal temperature range, so that the service life of the thermal imager detector refrigerating machine is prolonged, and normal and continuous operation of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to a heat dissipation device, in particular to a heat dissipation device for a detector refrigeration component, and belongs to the technical field of radiator design and manufacturing. Background Art

[0002] The cooling type infrared thermal imager is mainly composed of an optical-mechanical system, a detector cooling component, an imaging control circuit component, etc. When the thermal imager is working, the heat generated by the detector cooling component and the imaging control circuit component will cause problems such as uneven temperature inside the thermal imager, thermal deformation of optical components, focal length change, and poor imaging clarity. The existing thermal imager compartment design installs the imaging control circuit component in a separate space separated from the optical-mechanical system. The heat generated by the imaging control circuit component can isolate the optical-mechanical system from the physical space. However, as the last link of the optical-mechanical system imaging, the detector cooling component is at the end of the optical path and is difficult to be isolated from the physical space. The heat generated by the detector cooling component is transferred to the thermal imager body by heat conduction, and then dissipated to the outside through the body. This type of heat dissipation belongs to passive heat dissipation, and the heat dissipation capacity of the thermal imager is limited by the heat transfer coefficient of the body material and the external ambient temperature. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] In order to solve the problem that the heat generated by the existing refrigeration type infrared thermal imager during operation cannot be completely dissipated to the outside, thereby affecting the normal operation of the infrared thermal imager, the utility model provides a detector refrigeration component heat dissipation device.

[0004] The utility model is completed through the following technical scheme: a detector refrigeration component heat dissipation device, including a base, characterized in that the top surface of the base is connected to the detector refrigeration component through an adapter plate, a first groove open upward is provided on the base, and through holes are respectively provided at both ends of the bottom of the first groove, and a second groove open downward is provided on the bottom surface where the adapter plate is connected to the top surface of the base, and the second groove and the first groove are matched with each other to form a heat dissipation cavity, and two heat dissipation blocks matched with the two through holes at the bottom of the first groove are provided at the bottom of the base, each heat dissipation block is provided with a fan, and the rotation direction of the fan on one of the heat dissipation blocks is opposite to the rotation direction of the fan on the other heat dissipation block, so that air can form a flow in the heat dissipation cavity through the fans with opposite rotation directions, thereby taking away the heat generated by the detector refrigeration component and conducted to the heat dissipation cavity through the adapter plate, changing the previous passive heat dissipation to active heat dissipation, which can effectively improve the heat dissipation effect of the detector refrigeration component and ensure the normal and continuous operation of the equipment.

[0005] The base includes a rectangular plate, a mounting boss arranged on the top surface of the rectangular plate, and two vertical plates arranged axially on the bottom surface of the rectangular plate at intervals. The shape of the mounting boss is adapted to the shape of the adapter plate, and the mounting boss is provided with screw holes and axial positioning waist holes so that the heat sink can be installed and connected to the adapter plate through the base, and then connected to the detector cooling assembly through the adapter plate.

[0006] The first groove on the base is located between two spaced-apart vertical plates, and the first groove is arranged as a rectangular groove along the longitudinal direction of the base. The through hole is arranged as a rectangular hole and is located at both ends of the bottom of the first groove. A strip protrusion is provided on the bottom of the groove between the two through holes, and the top surface of the strip protrusion is consistent in height with the top surface of the mounting boss, and an axial waist hole is provided on the top surface of the strip protrusion.

[0007] The adapter plate is configured as a flat plate, and its shape is consistent with the shape of the mounting boss of the base. The bottom surface of the adapter plate is provided with a downwardly extending lower positioning pin that matches the mounting boss and the axial waist hole on the strip protrusion. The top surface of the adapter plate is provided with an upwardly extending upper positioning pin that matches the detector cooling assembly. The adapter plate is also provided with a mounting position adjustment hole that matches the screw hole on the mounting boss, so that the detector cooling assembly can be quickly and accurately connected to the base through the adapter plate, and the position can be adjusted, so that the detector cooling assembly and the base can be accurately matched.

[0008] The shape of the second groove on the bottom surface of the adapter plate is adapted to the first groove on the base, and a long protrusion is provided in the second groove to match the strip protrusion in the first groove. The bottom surface of the long protrusion is consistent in height with the bottom surface of the adapter plate, and a plurality of downwardly extending heat dissipation fins are arranged in the second grooves located on both sides of the long protrusion, so that a heat dissipation cavity is formed by matching the second groove with the first groove, and the heat dissipation area is increased by the heat dissipation fins, thereby improving the heat conduction efficiency.

[0009] The heat dissipation block includes a horizontal connecting plate, and upper and lower heat dissipation protrusions respectively arranged on the top and bottom surfaces of the horizontal connecting plate, wherein the lower heat dissipation protrusion located on the bottom surface of the horizontal connecting plate is composed of a plurality of vertical heat dissipation fins arranged in parallel and spaced apart, and a fan mounting groove is provided in the center of the lower heat dissipation protrusion, and the upper heat dissipation protrusion located on the top surface of the horizontal connecting plate is composed of a plurality of vertical heat dissipation fins arranged in parallel and spaced apart, and a heat dissipation through-hole connected to the gap between the vertical heat dissipation fins of the upper heat dissipation protrusion is provided on the horizontal connecting plate, the heat dissipation block is connected to the bottom surface of the base through bolts on the horizontal connecting plate, and the upper heat dissipation protrusion is located in the heat dissipation cavity through the through-hole on the first groove, so as to increase the heat dissipation area through the upper and lower heat dissipation protrusions, and the airflow generated by the fan can enter and exit the heat dissipation cavity through the heat dissipation through-hole on the horizontal connecting plate to take away the heat.

[0010] The base is provided with a control board, which is electrically connected to a temperature sensor and a fan provided on the housing of the detector refrigeration assembly so as to feed back temperature information obtained by the temperature sensor to the control board, which then controls the fan to work for forced heat dissipation.

[0011] The utility model has the following advantages and effects: the above scheme is adopted to dissipate heat by combining passive and active heat dissipation, the active heat dissipation method is heat convection, mainly through the temperature sensor to monitor the working temperature of the detector refrigerator, control the fans with opposite rotation directions to make the air flow in the heat dissipation cavity, and enhance the heat dissipation capacity. The detector refrigeration component can work stably within the normal temperature range, thereby increasing the working life of the thermal imager detector refrigerator and ensuring the normal and continuous operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a front view of the adapter plate of the utility model;

[0014] Figure 3 This is a bottom view of the adapter plate of the present utility model;

[0015] Figure 4 This is a front view of the base of the utility model;

[0016] Figure 5 This is a bottom view of the base of the utility model;

[0017] Figure 6 This is a structural diagram of the heat sink of the utility model;

[0018] Figure 7 for Figure 1 sectional view of . DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0020] The detector cooling assembly heat dissipation device provided by the utility model comprises a base 1, the top surface of the base 1 is connected to the detector cooling assembly 2 through an adapter plate 4, a first groove 16 open upward is provided on the base 1, and through holes 18 are respectively provided at both ends of the bottom of the first groove 16, and a second groove 12 open downward is provided on the bottom surface of the adapter plate 4 connected to the top surface of the base 1, and the second groove 12 and the first groove 16 are matched with each other to form a heat dissipation cavity 27, and two heat dissipation blocks 5 matched with the two through holes 18 at the bottom of the first groove 16 are provided at the bottom of the base 1, and a fan 6 is provided on each heat dissipation block 5, and the rotation direction of the fan on one of the heat dissipation blocks is opposite to the rotation direction of the fan on the other heat dissipation block, so that air can form a flow in the heat dissipation cavity 27 through the fans 6 with opposite rotation directions, thereby taking away the heat generated by the detector cooling assembly 2 and conducted to the heat dissipation cavity 27 through the adapter plate 4, changing the previous passive heat dissipation to active heat dissipation, effectively improving the heat dissipation effect of the detector cooling assembly 2, and ensuring the normal and continuous operation of the equipment;

[0021] The base 1 includes a rectangular plate 14, a mounting boss 17 disposed on the top surface of the rectangular plate 14, and two vertical plates 21 disposed axially on the bottom surface of the rectangular plate 14 and spaced apart from each other. The shape of the mounting boss 17 is adapted to the shape of the adapter plate 4, and the mounting boss 17 is provided with a screw hole 20 and an axial positioning waist hole 15, so that the heat sink 5 can be mounted and connected to the adapter plate 4 through the base 1, and then connected to the detector cooling assembly 2 through the adapter plate 4;

[0022] The first groove 16 on the base 1 is located between two vertical plates 21 arranged at intervals. The first groove 16 is arranged as a rectangular groove along the longitudinal direction of the base 1. The through holes 18 are arranged as rectangular holes and are located at both ends of the bottom of the first groove 16. A strip protrusion 19 is arranged on the bottom of the groove between the two through holes 18. The top surface of the strip protrusion 19 is in the same height as the top surface of the mounting boss 17, and an axial waist hole is arranged on the top surface of the strip protrusion 19.

[0023] The adapter plate 4 is set as a flat plate, and its shape is consistent with the shape of the mounting boss 17 of the base 1. The bottom surface of the adapter plate 4 is provided with a downwardly extending lower positioning pin 11 that matches the mounting boss 17 and the axial waist hole on the strip protrusion 19, and the top surface of the adapter plate 4 is provided with an upwardly extending upper positioning pin 9 that matches the detector cooling assembly 2. The adapter plate 4 is also provided with a mounting position adjustment hole 8 that matches the screw hole 20 on the mounting boss 17, so that the detector cooling assembly 2 can be quickly and accurately connected to the base 1 through the adapter plate 4, and the position can be adjusted, so that the detector cooling assembly 2 and the base 1 can be accurately matched;

[0024] The shape of the second groove 12 on the bottom surface of the adapter plate 4 is adapted to the first groove 16 on the base 1. A long protrusion 10 is provided in the second groove 12 to match the strip protrusion 19 in the first groove 16. The bottom surface of the long protrusion 10 is consistent with the bottom surface of the adapter plate 4. A plurality of cooling fins 13 extending downward are provided in the second grooves 12 on both sides of the long protrusion 10, so that a cooling cavity 27 is formed by matching the second groove 12 with the first groove 16, and the cooling fins 13 increase the cooling area, thereby improving the heat conduction efficiency.

[0025] The heat dissipation block 5 includes a horizontal connecting plate 23, and upper and lower heat dissipation protrusions respectively arranged on the top and bottom surfaces of the horizontal connecting plate 23, wherein the lower heat dissipation protrusion 24 located on the bottom surface of the horizontal connecting plate 23 is composed of a plurality of vertical heat dissipation fins arranged in parallel and spaced apart, and a fan 6 mounting groove 25 is arranged at the center of the lower heat dissipation protrusion 24, and the upper heat dissipation protrusion 22 located on the top surface of the horizontal connecting plate 23 is composed of a plurality of vertical heat dissipation fins arranged in parallel and spaced apart, and a heat dissipation through hole 26 connected to the vertical heat dissipation fin gap of the upper heat dissipation protrusion 22 is arranged on the horizontal connecting plate 23, and the heat dissipation block 5 is connected to the bottom surface of the base 1 through the bolts on the horizontal connecting plate 23, and the upper heat dissipation protrusion 22 passes through the through hole 18 on the first groove 16 and is located in the heat dissipation cavity 27, so as to increase the heat dissipation area through the upper and lower heat dissipation protrusions 22 and 24, and the airflow generated by the fan 6 can enter and exit the heat dissipation cavity 27 through the heat dissipation through hole 26 on the horizontal connecting plate 23 to take away the heat;

[0026] A control board 7 is provided on the base 1, and the control board 7 is electrically connected to the temperature sensor 3 and the fan 6 provided on the outer shell of the detector cooling assembly 2, so as to feed back the temperature information obtained by the temperature sensor 3 to the control board 7, and then the control board 7 controls the fan 6 to work for forced heat dissipation.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A detector cooling assembly heat dissipation device, comprising a base, characterized in that The top surface of the base is connected to the detector refrigeration assembly through an adapter plate, a first groove open upward is provided on the base, through holes are respectively provided at both ends of the bottom of the first groove, a second groove open downward is provided on the bottom surface where the adapter plate is connected to the top surface of the base, the second groove and the first groove are matched with each other to form a heat dissipation cavity, two heat dissipation blocks matched with the two through holes at the bottom of the first groove are provided at the bottom of the base, each heat dissipation block is provided with a fan, and the rotation direction of the fan on one of the heat dissipation blocks is opposite to the rotation direction of the fan on the other heat dissipation block; The shape of the second groove on the bottom surface of the adapter plate is adapted to the first groove on the base, and a long protrusion matching the strip protrusion in the first groove is provided in the second groove, and the bottom surface of the long protrusion is consistent in height with the bottom surface of the adapter plate, and a plurality of cooling fins extending downward are arranged in the second grooves on both sides of the long protrusion; The heat dissipation block includes a horizontal connecting plate, and upper and lower heat dissipation protrusions respectively arranged on the top and bottom surfaces of the horizontal connecting plate, wherein the lower heat dissipation protrusion located on the bottom surface of the horizontal connecting plate is composed of a plurality of vertical heat dissipation fins arranged in parallel and spaced apart, and a fan mounting groove is provided at the center of the lower heat dissipation protrusion, and the upper heat dissipation protrusion located on the top surface of the horizontal connecting plate is composed of a plurality of vertical heat dissipation fins arranged in parallel and spaced apart, and a heat dissipation through hole connected to the gap between the vertical heat dissipation fins of the upper heat dissipation protrusion is provided on the horizontal connecting plate, the heat dissipation block is connected to the bottom surface of the base through bolts on the horizontal connecting plate, and the upper heat dissipation protrusion passes through the through hole on the first groove and is located in the heat dissipation cavity.

2. The detector cooling assembly heat dissipation device according to claim 1, characterized in that The base includes a rectangular plate, a mounting boss arranged on the top surface of the rectangular plate, and two vertical plates axially arranged at intervals on the bottom surface of the rectangular plate. The shape of the mounting boss is adapted to the shape of the adapter plate, and the mounting boss is provided with a screw hole and an axial positioning waist hole.

3. The detector cooling assembly heat dissipation device according to claim 1, characterized in that The first groove on the base is located between two spaced-apart vertical plates, and the first groove is arranged as a rectangular groove along the longitudinal direction of the base. The through hole is arranged as a rectangular hole and is located at both ends of the bottom of the first groove. A strip protrusion is provided on the bottom of the groove between the two through holes, and the top surface of the strip protrusion is consistent in height with the top surface of the mounting boss, and an axial waist hole is provided on the top surface of the strip protrusion.

4. The detector cooling assembly heat dissipation device according to claim 1, characterized in that The adapter plate is configured as a flat plate, and its shape is consistent with the shape of the base mounting boss. The bottom surface of the adapter plate is provided with a downwardly extending lower positioning pin that matches the mounting boss and the axial waist hole on the strip protrusion. The top surface of the adapter plate is provided with an upwardly extending upper positioning pin that matches the detector refrigeration assembly. The adapter plate is also provided with a mounting position adjustment hole that matches the screw hole on the mounting boss.

5. The detector cooling assembly heat dissipation device according to claim 1, characterized in that The base is provided with a control panel, which is electrically connected to a temperature sensor and a fan arranged on the outer shell of the detector refrigeration assembly.

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