A board card heat dissipation structure and a printing trolley

Abstract

This utility model relates to the field of component heat dissipation, providing a circuit board heat dissipation structure and a printing carriage. The circuit board heat dissipation structure includes: a heat sink with an internal circulating water channel, the circulating water channel having an inlet and an outlet connecting to the outside of the heat sink; a cold water tank, including an outlet and an inlet, the outlet connecting to the inlet and the inlet connecting to the outlet, the cold water tank being used to input a cold source into the circulating water channel and circulate the cold source from the outlet to the inlet; and a circuit board attached to the heat sink. The circuit board heat dissipation structure provided by this utility model can effectively dissipate heat from the circuit board, with excellent heat dissipation effect, and can extend the service life of the components on the circuit board.

Description

Technical Field

[0001] This utility model belongs to the field of heat dissipation of electronic components, and particularly relates to a heat dissipation structure for circuit boards and a printing carriage. Background Technology

[0002] As a core component of any device, circuit boards generate a significant amount of heat during operation. If this heat cannot be dissipated in a timely manner, it will affect the normal operation of the components on the board. Current circuit board cooling methods typically involve a heatsink contacting the board, transferring heat from the board to the heatsink and then dissipating it into the air. However, when there are many boards densely packed together, the dissipated heat can form an insulation layer around the boards, raising the ambient temperature and resulting in ineffective cooling. Utility Model Content

[0003] This utility model provides a heat dissipation structure for circuit boards, aiming to solve the problem that the heat dissipation effect is not ideal in the prior art and thus cannot achieve the desired heat dissipation effect.

[0004] This utility model is implemented as follows: a heat dissipation structure for a circuit board, characterized by comprising:

[0005] The heat sink has an internal circulating water channel, which has an inlet and an outlet that connect to the outside of the heat sink.

[0006] A cold water tank includes an outlet and an inlet. The outlet is connected to the inlet, and the inlet is connected to the outlet. The cold water tank is used to input a cold source into the circulating water circuit and circulate the cold source from the outlet to the inlet.

[0007] The circuit board is attached to the heat sink.

[0008] Furthermore, the circuit board is disposed on one side of the heat sink, and the heat sink is provided with a plurality of mounting positions at intervals along its length, and the plurality of circuit boards are respectively attached to the plurality of mounting positions.

[0009] Furthermore, the board is fixed to at least one side of the top and bottom sides of the heat sink.

[0010] Furthermore, when the board is fixed to the top side of the heat sink, a first adapter is used to fix the board to the top side of the heat sink; when the board is fixed to the bottom side of the heat sink, a second adapter is used to fix the board to the bottom side of the heat sink.

[0011] Furthermore, the water outlet and the water inlet, as well as the water inlet and the water outlet, are connected by a pipe, and the pipe is wrapped with thermal insulation material.

[0012] Furthermore, the heat sink has connecting portions at both ends for fixing.

[0013] Furthermore, the connecting part is a sheet metal part fixed on the heat sink.

[0014] Furthermore, both the water inlet and the water outlet are located on the upper side of the heat dissipation component.

[0015] This utility model also provides a printing carriage, including a carriage body and the aforementioned board heat dissipation structure. The number of heat dissipation components is several, and the several heat dissipation components are arranged at intervals in the horizontal direction inside the carriage body and connected and fixed to the carriage body.

[0016] Furthermore, several of the heat dissipation components share one cold water tank, and the outlet and inlet of the cold water tank are connected to each of the heat dissipation components by means of a diverter.

[0017] The beneficial effects achieved by this utility model are that by opening a circulating water channel in the heat sink and connecting the circulating water channel to the cold water tank, the cold water tank can input a cold source into the circulating water channel and make the cold source circulate in the circulating water channel. In this way, the cold source can effectively remove the heat generated by the circuit board attached to the heat sink, and prevent the heat from accumulating around the circuit board. This can effectively cool the circuit board and improve the service life of the components on the circuit board. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the heat dissipation structure of the circuit board provided by this utility model;

[0019] Figure 2 This is a structural diagram of the heat sink component with the open-plate heat dissipation structure provided by this utility model;

[0020] Figure 3 yes Figure 2 Cross-sectional view at point AA.

[0021] Explanation of icon numbers:

[0022] 1. Heat sink; 11. Circulating water circuit; 12. Inlet; 13. Outlet; 14. Connecting part; 2. Cold water tank; 21. Outlet end; 22. Inlet end; 3. Circuit board; 4. First adapter; 5. Second adapter; 6. Pipe; 7. Insulation material; 8. Pipe joint. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] See Figures 1-3 This utility model provides a board heat dissipation structure, including a heat sink 1, a cold water tank 2, and a board 3. The heat sink 1 has an internal circulating water channel 11, specifically, the circulating water channel 11 can be arranged in an S-shape to fill the entire interior of the heat sink 1. The circulating water channel 11 has an inlet 12 and an outlet 13 connecting to the outside of the heat sink 1. The cold water tank 2 includes an outlet 21 and an inlet 22. The outlet 21 is connected to the inlet 12, and the inlet 22 is connected to the outlet 13. The cold water tank 2 is used to input a cold source into the circulating water channel 11 and circulate the cold source from the outlet 13 to the inlet 22. The board 3 is attached to the heat sink 1.

[0025] By opening a circulating water path 11 inside the heat sink 1 and connecting the circulating water path 11 to the cold water tank 2, the cold water tank 2 can input a cold source into the circulating water path 11 and make the cold source circulate within the circulating water path 11. In this way, the cold source can effectively remove the heat generated by the circuit board 3 attached to the heat sink 1, and prevent the heat from accumulating around the circuit board 3. This can effectively cool down the circuit board 3 and improve the service life of the components on the circuit board 3.

[0026] The heat dissipation structure of the board provided by this utility model can effectively dissipate heat from the board 3, with excellent heat dissipation effect, which can extend the service life of the components on the board 3.

[0027] See Figure 2 Furthermore, the board 3 is located on one side of the heat sink 1. This facilitates the installation of the board 3 and ensures that the heat sink 1 provides sufficient heat dissipation capacity for the board 3 at its current position. The heat sink 1 has several mounting positions (not shown in the figure) spaced apart along its length. Several boards 3 are respectively attached to several mounting positions. This allows several boards 3 to be installed on one heat sink 1 at the same time, avoiding the problem of too many heat sinks 1 and complicated installation caused by one heat sink 1 corresponding to one board 3.

[0028] Furthermore, the board 3 is fixed to at least one side of the top and bottom sides of the heat sink 1. This avoids interference between the board 3 and the internal circulating water channel 11 when the board 3 is fixed to the side of the heat sink 1, and also makes it easier to fix the board 3 on the heat sink 1.

[0029] See Figure 2Specifically, when the circuit board 3 is fixed to the top side of the heat sink 1, the first adapter 4 is used to fix the circuit board 3 to the top side of the heat sink 1; when the circuit board 3 is fixed to the bottom side of the heat sink 1, the second adapter 5 is used to fix the circuit board 3 to the bottom side of the heat sink 1. That is, the first adapter 4 can be used alone to fix the circuit board 3 to the top side of the heat sink 1, or the first adapter 4 can be used alone to fix the circuit board 3 to the bottom side of the heat sink 1, or the first adapter 4 and the second adapter 5 can be used simultaneously to fix the circuit board 3 to the top and bottom sides of the heat sink 1 respectively. By fixing the circuit board 3 to the heat sink 1 through the first adapter 4 and / or the second adapter 5, the fixing method is more flexible.

[0030] See Figure 1 Furthermore, the outlet 21 and the inlet 12, and the inlet 22 and the outlet 13 are connected by a pipe 6, which is wrapped with insulation material 7. The insulation material 7 can insulate the cold source inside the pipe 6, thus preventing the cold source entering the heat dissipation plate from the cold water tank 2 from being affected by the environment and thus affecting the heat dissipation effect. It can also prevent the cold source entering the cold water tank 2 from the heat dissipation plate from dissipating the heat it carries to the surrounding environment, thus preventing the ambient temperature from rising and also affecting the heat dissipation effect.

[0031] See Figure 2 Furthermore, the heat sink 1 has connecting parts 14 at both ends for fixing, that is, the heat sink 1 can be fixed to other components through the connecting parts 14, thereby realizing the fixing of the board 3.

[0032] Specifically, the connecting part 14 is a sheet metal part fixed on the heat sink 1. That is, the connecting part 14 and the heat sink 1 are set separately, which can avoid directly machining the connecting part 14 on the heat sink 1, thereby reducing the difficulty of the machining process and improving production efficiency.

[0033] See Figure 2 Furthermore, both the inlet 12 and the outlet 13 are located on the upper side of the heat sink 1, which facilitates the installation of the circulating water circuit 11 of the heat sink 1 and the cold water tank 2.

[0034] This utility model embodiment provides a printing carriage, which is the core component of digital printing equipment and is used to spray ink onto the printing medium for printing operations. The printing carriage includes a carriage body (not shown in the figure) and the aforementioned board heat dissipation structure. There are several heat dissipation components 1, which are arranged horizontally at intervals inside the carriage body and connected and fixed to the carriage body. That is, the heat dissipation components 1 are connected and fixed to the carriage body through the aforementioned connecting part 14.

[0035] The printing carriage provided by this utility model can not only effectively dissipate heat from the board 3 to extend the service life of the components on the board 3, but also dissipate heat from the space inside the carriage body. This can prevent the heat generated by the board 3 from accumulating inside the carriage body and affecting the ink temperature of the printing carriage, thus affecting printing. The heat dissipation effect of the printing carriage is excellent.

[0036] Furthermore, several heat sinks 1 share a single cold water tank 2. The outlet 21 and inlet 22 of the cold water tank 2 are connected to each of the heat sinks 1 individually using a split adapter. That is, the outlet 21 and inlet 22 of the cold water tank 2 are divided into a consistent number of interfaces according to the actual number of heat sinks 1. This reduces the number of cold water tanks 2 and lowers costs.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A board card heat dissipation structure, characterized in that, include: The heat sink has an internal circulating water channel, which has an inlet and an outlet that connect to the outside of the heat sink. A cold water tank includes an outlet and an inlet. The outlet is connected to the inlet, and the inlet is connected to the outlet. The cold water tank is used to input a cold source into the circulating water circuit and circulate the cold source from the outlet to the inlet. The circuit board is attached to the heat sink.

2. The board card heat dissipation structure of claim 1, wherein, The circuit board is disposed on one side of the heat sink, and the heat sink is provided with a plurality of mounting positions at intervals along its length, and the plurality of circuit boards are respectively attached to the plurality of mounting positions.

3. The heat dissipation structure of the circuit board as described in claim 2, characterized in that, The board is fixed to at least one side of the top and bottom sides of the heat sink.

4. The heat dissipation structure of the circuit board as described in claim 3, characterized in that, When the board is fixed to the top side of the heat sink, a first adapter is used to fix the board to the top side of the heat sink; when the board is fixed to the bottom side of the heat sink, a second adapter is used to fix the board to the bottom side of the heat sink.

5. The heat dissipation structure of the circuit board as described in claim 1, characterized in that, The water outlet and the water inlet, as well as the water inlet and the water outlet, are connected by a pipe, and the pipe is wrapped with thermal insulation material.

6. The heat dissipation structure of the circuit board as described in claim 1, characterized in that, The heat sink has connecting parts at both ends for fixing.

7. The heat dissipation structure of the circuit board as described in claim 1, characterized in that, The connecting part is a sheet metal part fixed on the heat sink.

8. The heat dissipation structure of the circuit board as described in claim 1, characterized in that, Both the water inlet and the water outlet are located on the upper side of the heat sink.

9. A printing cart, characterized in that, It includes a trolley body and a board heat dissipation structure as described in any one of claims 1-8, wherein the number of heat dissipation components is several, and the several heat dissipation components are arranged at intervals in the horizontal direction within the trolley body and are connected and fixed to the trolley body.

10. The printing carriage as described in claim 9, characterized in that, Several heat dissipation components share one cold water tank, and the outlet and inlet of the cold water tank are connected to each of the heat dissipation components by means of a diverter.

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