Tool for detecting airtightness of water channel

Abstract

The utility model provides a water channel air tightness detection tool comprising a plugging main body, the middle part of which is provided with a vent hole; the connecting part is arranged at the first end of the plugging main body, one end of the connecting part is communicated with the vent hole, and the other end of the connecting part is connected with an external air source; the locking part is arranged at the second end, opposite to the first end, of the plugging main body, and the water channel is connected with the vent hole through the locking part. According to the tool for water channel airtightness detection, through cooperation of the plugging main body, the connecting part and the locking part, an external air source can enter the water channel through the plugging main body for water channel airtightness detection, the whole detection process does not need extra tools and components, the original structure of the water channel does not need to be disassembled, the detection process is simple, convenient and rapid, and the detection efficiency is improved. Time and labor are saved.

Description

Technical Field

[0001] The present application relates to the technical field of battery water channel air tightness detection, and in particular to a tooling for water channel air tightness detection. Background Art

[0002] As environmental issues become increasingly prominent, the development of new energy vehicles is also getting faster and faster. As the core component of new energy vehicles, the development prospects of automotive power batteries are getting broader and broader. At the same time, the rapid development of battery thermal management systems is urgently needed. The working temperature of power batteries is too high or too low, which will reduce their charging and discharging efficiency and overall service life. In addition, the uneven temperature of automotive power battery cells can easily lead to the rapid decay of the overall battery life. Therefore, it is necessary not only to control the battery to work within a reasonable temperature range, but also to maintain the consistency of the temperature of each battery cell inside the battery pack, so that it is in the optimal temperature range and has high working efficiency, while improving the reliability of the battery and extending its life. The existing battery cooling system can be cooled by water.

[0003] However, when welding the battery box, some welds may have defects such as pores, burn-through, and leaking welds, which will cause the airtightness of the water channel used for the cooling system to fail to meet the standards. In order to ensure the normal use of power batteries and the yield and qualified rate of production, airtightness testing is required. However, due to the complex structure of the water cooling system and the difficulty of disassembly and assembly, the airtightness testing process is relatively complicated. In the process of assembling and producing power batteries, it is time-consuming and labor-intensive, delaying the production schedule.

[0004] Therefore, it is necessary to design a waterway air tightness detection tool to solve the above problems. Utility Model Content

[0005] In view of this, in order to overcome the defects of the prior art, the utility model provides a tool for water channel airtightness detection, which effectively solves the problem that the water cooling system has a complex structure, is difficult to disassemble and assemble, and the airtightness detection process is relatively complicated, which is time-consuming and labor-intensive, delaying the production schedule in the process of assembling and producing power batteries.

[0006] According to the utility model, a tool for detecting air tightness of a water channel is provided, wherein the tool for detecting air tightness of a water channel includes a sealing body with a vent hole opened in the middle; a connecting part, which is arranged at the first end of the sealing body, one end of the connecting part is connected to the vent hole, and the other end of the connecting part is connected to an external air source; a locking part, which is arranged at the second end of the sealing body relative to the first end, and the water channel is connected to the vent hole through the locking part.

[0007] Preferably, the locking portion comprises a sliding block and a clamping block, the clamping block is arranged at the second end of the blocking body, the sliding block is sleeved on the clamping block, and the sliding block is slidably connected to the clamping block.

[0008] Preferably, the outer side wall of the second end of the blocking body is provided with a locking position, and the clamping block is arranged at the locking position.

[0009] Preferably, the clamping block comprises a bending portion and a claw portion, the bending portion is close to the first end of the blocking body, the claw portion extends from the first end to the second end of the blocking body, and the claw portion extends out of the second end of the blocking body.

[0010] Preferably, a connecting port is provided in the middle of the second end of the blocking body, one end of the connecting port is connected to the vent hole, and the other end of the connecting port is connected to the water channel; when the water channel is connected to the connecting port, the claw portion is engaged with the outer wall of the water channel.

[0011] Preferably, the bending portion is bent in the axial direction away from the blocking body; the locking portion can switch between a first state and a second state. When the sliding block is sleeved on the bending portion, the locking portion is in the first state; when the sliding block is sleeved on the claw portion, the locking portion is in the second state.

[0012] Preferably, a connecting piece is sleeved on the outer side wall of the claw portion.

[0013] Preferably, there are a plurality of clamping blocks, and the plurality of clamping blocks are evenly arranged on the outer side wall of the second end of the blocking body.

[0014] Preferably, the outer side wall of the second end of the blocking body is further provided with a first groove, and a connecting protrusion is formed on a side of the clamping block facing the outer side wall of the blocking body, and the connecting protrusion is provided in the first groove.

[0015] Preferably, the connecting protrusion is provided with a connecting hole, the interior of the first groove is provided with a connecting ring, and the connecting ring passes through the connecting hole of each clamping block.

[0016] According to the tooling for testing air tightness of waterways of the utility model, through the cooperation of the sealing body, the connecting part and the locking part, an external air source can enter the waterway through the sealing body to perform air tightness testing of the waterway. The entire testing process does not require the use of additional tools and components, nor does it require the disassembly of the original structure of the waterway. The testing process is simple, convenient and fast, saving time and effort.

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A structural schematic diagram showing a locked state of a waterway air tightness detection tool according to an embodiment of the utility model;

[0020] Figure 2 A schematic structural diagram showing a waterway air tightness detection tooling in an uninstalled state according to an embodiment of the utility model;

[0021] Figure 3 A schematic structural diagram showing a first end of a blocking body according to an embodiment of the utility model;

[0022] Figure 4 A schematic structural diagram showing the second end of the blocking body according to an embodiment of the utility model;

[0023] Figure 5 A schematic structural diagram showing a blocking body and a locking portion according to an embodiment of the utility model;

[0024] Figure 6 A schematic structural diagram of a clamping block according to an embodiment of the utility model is shown.

[0025] Figure markings: 1-blocking body; 101-vent; 102-first end; 103-second end; 104-locking position; 105-connecting port; 106-first groove; 107-connecting ring; 2-locking portion; 201-sliding block; 202-clamping block; 203-bending portion; 204-claw portion; 205-locking ring; 206-connecting protrusion; 207-connecting hole; 208-second groove; 3-connecting portion; 4-waterway workpiece; 401-slot. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0027] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] According to a first aspect of the utility model, a tool for waterway airtightness detection is provided, such as Figures 1 to 6 As shown, the water channel air tightness detection tool is used to detect the air tightness of the water channel of the cooling system of the battery box, and the water channel air tightness detection tool includes a sealing body 1, a connecting part 3 and a locking part 2.

[0031] In the following description, reference will be made to Figures 1 to 6The detailed structures of the sealing body 1, the connecting part 3 and the locking part 2 of the waterway airtightness detection tool are specifically described.

[0032] like Figure 1 and Figure 2 As shown, in the embodiment, the water channel air tightness detection tool has two states, namely a first state and a second state. The first state can be understood as a locked state connected to the water channel workpiece 4 (the water channel workpiece 4 is a partial structure of the water channel of the cooling system of the battery box), and the second state can be understood as a state that is not installed and used, and can also be understood as a transportation state.

[0033] like Figures 1 to 6 As shown, in the embodiment, a vent hole 101 is provided in the middle of the plugging body 1, and the vent hole 101 is used for the passage of an external air source, and the air tightness of the waterway workpiece 4 is detected by using the external air source. The connecting portion 3 is arranged at the first end 102 of the plugging body 1, one end of the connecting portion 3 is connected to the vent hole 101, and the other end of the connecting portion 3 is connected to the external air source. The connecting portion 3 can be, for example, a quick-connect joint, one end of the quick-connect joint can be connected to the vent hole 101 by threading, and the input pipe of the external air source can be quickly connected to the other end of the quick-connect joint, thereby realizing the rapid detection of the air tightness of the waterway workpiece 4, and the quick-connect joint can be a component commonly used in existing designs. The locking portion 2 is arranged at the second end 103 of the plugging body 1, and the second end 103 is arranged opposite to the first end 102. The plugging body 1 can be formed into a cylindrical structure, and the first end 102 and the second end 103 can be the two ends of the cylindrical structure respectively. The waterway workpiece 4 is connected to the vent hole 101 through the locking portion 2. When the waterway airtightness detection tool is used to detect the airtightness of the waterway workpiece 4, the waterway workpiece 4 can be locked to the blocking body 1 by the locking part 2 to ensure the accuracy of the detection.

[0034] Preferably, if Figures 1 to 6 As shown, in the embodiment, the locking portion 2 may include a sliding block 201 and a clamping block 202. The clamping block 202 is disposed at the second end 103 of the blocking body 1, and the sliding block 201 is sleeved on the clamping block 202, and the sliding block 201 is slidably connected to the clamping block 202. The sliding block 201 can unlock the connection between the clamping block 202 and the waterway workpiece 4, or lock the connection between the clamping block 202 and the waterway workpiece 4. Figure 2 As shown, in the unlocked state, the sliding block 201 slides to a position close to the first end 102 of the blocking body 1, as shown in FIG. Figure 1 As shown, in the locked state, the sliding block 201 slides to a position away from the first end 102 of the blocking body 1 .

[0035] Preferably, if Figures 1 to 6As shown, in the embodiment, the outer side wall of the second end 103 of the blocking body 1 is provided with a locking position 104, and the clamping block 202 is provided at the locking position 104. The clamping block 202 can be formed into a long strip shape, and the locking position 104 can also be formed into a long strip groove structure corresponding to the clamping block 202. The locking position 104 facilitates the installation of the clamping block 202 and also facilitates the sliding of the sliding block 201.

[0036] Preferably, if Figures 1 to 6 As shown, in the embodiment, the clamping block 202 may include a bending portion 203 and a claw portion 204. Specifically, as Figure 6 As shown, the setting position of the bending portion 203 is higher than the claw portion 204, so that the clamping block 202 can take the location of the following connecting protrusion 206 as the pivot center. When the sliding block 201 slides to the position where the bending portion 203 is located, the claw portion 204 can be pivoted in the axial direction away from the blocking body 1, thereby causing the claw portion 204 to be separated from the waterway workpiece 4; when the sliding block 201 slides to the position where the claw portion 204 is located, the claw portion 204 can be pivoted in the axial direction close to the blocking body 1, thereby causing the claw portion 204 to abut against the waterway workpiece 4 to achieve locking.

[0037] The bending portion 203 is close to the first end 102 of the blocking body 1 , and the claw portion 204 extends from the first end 102 to the second end 103 of the blocking body 1 . The claw portion 204 extends out of the second end 103 of the blocking body 1 , so that the claw portion 204 is easily connected to the waterway workpiece 4 .

[0038] Preferably, if Figures 1 to 6 As shown, in the embodiment, a connection port 105 is provided in the middle of the second end 103 of the plugging body 1, one end of the connection port 105 is connected to the vent hole 101, and the other end of the connection port 105 is connected to the water channel workpiece 4. When the water channel workpiece 4 is connected to the connection port 105, the claw portion 204 is engaged with the outer wall of the water channel workpiece 4. Specifically, as Figure 4 As shown, since the outer wall of the second end 103 of the plugging body 1 is provided with a locking position 104, in order to avoid interference, a connection port 105 for connecting the waterway workpiece 4 is provided in the middle of the second end 103 of the plugging body 1. Figure 2 As shown, the outer wall of the water channel workpiece 4 is provided with an annular clamping groove 401, and the clamping groove 401 can cooperate with the clamping claw portion 204 to achieve clamping, and then achieve locking and unlocking.

[0039] Preferably, if Figures 1 to 6As shown, in the embodiment, the bending portion 203 is bent toward the axial direction away from the blocking body 1; the locking portion 2 can switch between a first state and a second state. When the sliding block 201 is sleeved on the bending portion 203, the locking portion 2 is in the first state; when the sliding block 201 is sleeved on the claw portion 204, the locking portion 2 is in the second state.

[0040] Preferably, if Figures 1 to 6 As shown, in the embodiment, the outer wall of the claw portion 204 is provided with a connecting piece. Figure 2 , Figure 5 and Figure 6 As shown, the outer side wall of the claw portion 204 is provided with a second groove 208, and the connecting member can be formed as a locking ring 205, and the locking ring 205 can be locked in the second groove 208. The locking ring 205 can be elastic, and the locking ring 205 can make the claw portion 204 abut against the waterway workpiece 4, and can also make the claw portion 204 reset after the sliding block 201 unlocks the connection between the clamping block 202 and the waterway workpiece 4.

[0041] Preferably, if Figures 1 to 6 As shown, in the embodiment, the number of the clamping blocks 202 is multiple, and the multiple clamping blocks 202 are evenly arranged on the outer side wall of the second end 103 of the plugging body 1. Specifically, in the embodiment, the number of the clamping blocks 202 can be four, and the four clamping blocks 202 are evenly arranged on the outer side wall of the second end 103 of the plugging body 1. The four clamping blocks 202 can ensure the connection force and ensure the connection stability with the waterway workpiece 4.

[0042] Preferably, if Figures 1 to 6 As shown, in the embodiment, the outer side wall of the second end 103 of the blocking body 1 is further provided with a first groove 106, and a connecting protrusion 206 is formed on one side of the clamping block 202 facing the outer side wall of the blocking body 1, and the connecting protrusion 206 is provided in the first groove 106. The first groove 106 can be used as a pivot axis of the clamping block 202 to facilitate unlocking and locking of the clamping block 202.

[0043] Preferably, if Figures 1 to 6 As shown, in the embodiment, the connecting protrusion 206 is provided with a connecting hole 207, and a connecting ring 107 is arranged inside the first groove 106. The connecting ring 107 passes through the connecting hole 207 of each clamping block 202. The connecting ring 107 can fix multiple clamping blocks 202 and make the multiple clamping blocks 202 pivot synchronously, thereby improving the quality of unlocking and locking and ensuring the connection stability with the waterway workpiece 4.

[0044] The process of using the waterway airtightness detection tool is as follows: before use, the waterway airtightness detection tool is in the following Figure 2In the unassembled state shown, the waterway workpiece 4 is inserted into the connection port 105, so that the claw portion 204 of the clamping block 202 is clamped with the clamping groove 401 of the waterway workpiece 4, and then the sliding block 201 is slid in a direction away from the first end 102 of the blocking body 1, so that the claw portion 204 of the clamping block 202 is locked with the waterway workpiece 4, and then the waterway workpiece 4 is in the state shown in FIG. Figure 1 The locking state shown is shown. The connecting part 3 is connected to an external air source, such as compressed air, which enters the waterway workpiece 4 through the connecting part 3 and the vent hole 101 of the blocking body 1 to observe whether the waterway workpiece 4 is leaking.

[0045] The waterway air tightness detection tooling allows an external air source to enter the waterway through the blocking body to perform air tightness detection on the waterway through the blocking body, through the cooperation of the blocking body, the connecting part and the locking part. The entire detection process does not require the use of additional tools and components, nor does it require the disassembly of the original structure of the waterway. The detection process is simple, convenient and fast, saving time and effort.

[0046] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A tool for waterway air tightness detection, characterized in that: The waterway air tightness detection tooling comprises: The main body is blocked, and a vent hole is opened in the middle; A connecting portion, arranged at the first end of the blocking body, one end of the connecting portion being connected to the vent hole, and the other end of the connecting portion being connected to an external air source; The locking portion is arranged at the second end of the blocking body relative to the first end, and the water channel and the vent hole are connected through the locking portion.

2. The waterway airtightness detection tool according to claim 1, characterized in that: The locking portion comprises a sliding block and a clamping block, wherein the clamping block is arranged at the second end of the blocking body, the sliding block is sleeved on the clamping block, and the sliding block is slidably connected to the clamping block.

3. The waterway airtightness detection tool according to claim 2, characterized in that: The outer side wall of the second end of the blocking body is provided with a locking position, and the clamping block is arranged at the locking position.

4. The waterway airtightness detection tool according to claim 2, characterized in that: The clamping block includes a bending portion and a claw portion, wherein the bending portion is close to the first end of the blocking body, the claw portion extends from the first end to the second end of the blocking body, and the claw portion extends out of the second end of the blocking body.

5. The waterway airtightness detection tool according to claim 4, characterized in that: A connecting port is provided in the middle of the second end of the blocking body, one end of the connecting port is connected to the vent hole, and the other end of the connecting port is connected to the water channel; When the water channel is connected to the connection port, the claw portion is engaged with the outer side wall of the water channel.

6. The waterway airtightness detection tool according to claim 4, characterized in that: The bent portion is bent in an axial direction away from the blocking body; The locking portion can switch between a first state and a second state. When the sliding block is sleeved on the bending portion, the locking portion is in the first state. When the sliding block is sleeved on the claw portion, the locking portion is in the second state.

7. The waterway airtightness detection tool according to claim 4, characterized in that: The outer side wall of the claw part is sleeved with a connecting piece.

8. The waterway airtightness detection tool according to claim 2, characterized in that: There are multiple clamping blocks, and the multiple clamping blocks are evenly arranged on the outer side wall of the second end of the blocking body.

9. The waterway airtightness detection tool according to claim 8, characterized in that: The outer side wall of the second end of the blocking body is further provided with a first groove, and a connecting protrusion is formed on a side of the clamping block facing the outer side wall of the blocking body, and the connecting protrusion is provided in the first groove.

10. The waterway airtightness detection tool according to claim 9, characterized in that: The connecting protrusion is provided with a connecting hole, and the interior of the first groove is provided with a connecting ring, and the connecting ring passes through the connecting hole of each clamping block.

Images