CN218919016U

CN218919016U - CTP battery package water-cooling plate temperature measurement structure

Info

Publication number: CN218919016U
Application number: CN202221872347.1U
Authority: CN
Inventors: 吴伟军
Original assignee: Cornex New Energy Co ltd
Current assignee: Cornex New Energy Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2023-04-25
Anticipated expiration: 2032-07-15

Abstract

The utility model relates to the technical field of battery packs and provides a temperature measuring structure of a water cooling plate of a CTP battery pack, which comprises a box body, a water cooling bottom plate, a bracket, a water inlet pipe, a water outlet pipe and a temperature measuring component, wherein the water cooling bottom plate comprises a main plate and a protruding part, common water cooling flow channels are arranged in the main plate and the protruding part, the main plate is fixed at the bottom of the box body, the protruding part and the main plate are of an integrated structure, and the protruding part extends to the outer side of the box body; the bracket is positioned above the protruding part and is fixedly connected with the box body; the water inlet pipe and the water outlet pipe are detachably connected with the bracket, and are communicated with the water cooling flow passage of the protruding part; the temperature measuring component is arranged on the water inlet pipe and the water outlet pipe; the arrangement of the structure ensures that the water inlet pipe, the water outlet pipe and the temperature measuring component are all arranged on the outer side of the box body, even if the leakage phenomenon occurs, the internal cell core of the battery pack cannot be influenced, so that the condition that the circuit is short-circuited due to the leakage at the joint of the pipe orifice is avoided, and meanwhile, the convenience of maintenance of the temperature measuring component is also improved.

Description

CTP battery package water-cooling plate temperature measurement structure

Technical Field

The utility model relates to the technical field of battery packs, in particular to a CTP battery pack water cooling plate temperature measuring structure.

Background

The CTP battery is a battery pack directly formed by the battery cells, is equivalent to the whole battery pack, namely a unique module, has very high safety requirements, is very important in prevention and control measures, and is mainly protected by means of pressure relief, heat insulation, fire prevention and the like, so that dangers caused by thermal runaway diffusion of the battery cells are avoided.

The current battery package structure sets up the interface with water-cooling plate and water pipe in the inside of battery package generally for medium temperature detection's in the water-cooling plate temperature measurement subassembly also sets up in the inside of battery package, and it has the possibility that water-cooling interface weeping, easily leads to battery package short circuit to take place the risk, and in addition temperature measurement subassembly if trouble damages and need dismantle battery package upper cover and maintain, the operation is very inconvenient.

Disclosure of Invention

In view of the above, the utility model provides a CTP battery pack water cooling plate temperature measuring structure with low leakage risk and capable of rapidly maintaining a temperature measuring assembly.

The technical scheme of the utility model is realized as follows: the utility model provides a CTP battery pack water cooling plate temperature measuring structure, which comprises a box body, wherein the box body is of a frame-shaped structure;

also comprises a water-cooling bottom plate, a bracket, a water inlet pipe, a water outlet pipe and a temperature measuring component, wherein,

the water-cooling bottom plate comprises a main plate and a protruding part, wherein common water-cooling flow channels are arranged in the main plate and the protruding part, the main plate is fixed at the bottom of the box body so as to seal the bottom of the box body, the protruding part and the main plate are of an integrated structure, the protruding part extends to the outer side of the box body, and the water-cooling flow channels in the protruding part are only arranged at the right half part of the water-cooling flow channels close to the main plate;

the bracket is positioned above the protruding part and is fixedly connected with the box body;

the water inlet pipe is detachably connected with the bracket and communicated with the water cooling flow passage through the protruding part;

the water outlet pipe is detachably connected with the bracket and communicated with the water cooling flow passage through the protruding part;

the temperature measuring assembly is detachably arranged on the water inlet pipe and the water outlet pipe and is used for detecting the medium temperature in the water inlet pipe and the water outlet pipe.

On the basis of the technical scheme, preferably, the support is of a rectangular frame-shaped structure, and a supporting plate is fixed in the middle of the support.

On the basis of the technical scheme, the bracket is preferably further provided with a first bolt, and the first bolt penetrates through the left half part of the protruding part and is fixedly connected with the bracket.

On the basis of the technical proposal, preferably, the water-cooling bottom plate is provided with a connecting pipe, the water inlet pipe comprises a transverse pipe, a longitudinal pipe, a first fixing plate and a second bolt, wherein,

the connecting pipe is fixed on the protruding part and communicated with the water cooling flow passage;

the transverse pipe and the longitudinal pipe are of an integrated structure, the longitudinal pipe is spliced and sealed with the connecting pipe, and the longitudinal pipe is communicated with the connecting pipe;

the first fixing plate and the longitudinal pipe are of an integrated structure;

the second bolt penetrates through the first fixing plate and is fixedly connected with the bracket.

On the basis of the technical scheme, preferably, the water inlet pipe comprises sealing rings, two sealing rings are fixed on the longitudinal pipe, and the sealing rings are propped against the outer wall of the longitudinal pipe and the inner wall of the connecting pipe.

On the basis of the technical scheme, preferably, the water inlet pipe comprises a sleeve, the sleeve is fixed at the lower end of the longitudinal pipe, and the inner wall of the sleeve abuts against the outer wall of the connecting pipe.

On the basis of the technical proposal, preferably, the water inlet pipe comprises a supporting block and a second fixed plate, the temperature measuring component comprises a detection head, a connector lug, a wire harness and a clamping plate, wherein,

the supporting block is fixed at the top of the longitudinal pipe, and a detection hole communicated with the longitudinal pipe is formed in the middle of the supporting block;

the second fixing plate is fixedly connected with the supporting block and is a T-shaped sliding block;

the detection head is inserted into the detection hole;

the connector lug is connected with the detection head through a wire harness;

the cardboard is fixed in the lateral part of connector lug, and the inside of cardboard is provided with T shape spout, and the cardboard is pegged graft with the second fixed plate and is fixed.

On the basis of the above technical scheme, preferably, the clamping plate is provided with a bump, the second fixing plate is provided with a groove, one side of the bump is an inclined plane, and the bump is clamped in the groove after the clamping plate is inserted into the second fixing plate.

On the basis of the technical scheme, preferably, the water outlet pipe is identical to the water inlet pipe in structure, and the water outlet pipe is identical to the temperature measuring component on the water inlet pipe in mounting structure.

On the basis of the technical scheme, the sealing cover is preferably further provided with a sealing cover, wherein the sealing cover is a circular sleeve with one end sealed, and the sealing cover is spliced with the pipe orifice of the transverse pipe.

Compared with the prior art, the CTP battery pack water cooling plate temperature measuring structure has the following beneficial effects:

(1) Through setting up water-cooling bottom plate into mainboard and protruding portion two parts, and the protruding portion extends to the outside of box, be provided with the support on the box and be used for fixed protruding portion, inlet tube, outlet pipe and protruding portion are all fixed with leg joint, so for the mouth of pipe that is connected of inlet tube and outlet pipe and water-cooling plate is located the outside of box, temperature measurement subassembly installs on inlet tube and outlet pipe, also be located the outside of battery package box, it can effectually avoid interface weeping to cause the battery to wrap up in the electric core damage short circuit, the security of using has been improved, when temperature measurement subassembly breaks down simultaneously, need not to take apart the last case lid of battery package and can carry out maintenance work, the convenience of device maintenance has been improved.

(2) Through setting up inlet tube and outlet pipe and support into detachable construction, and inlet tube and outlet pipe are pegged graft with the connecting pipe on the water-cooling bottom plate, and temperature measurement subassembly has adopted detachable connection structure with inlet tube and outlet pipe, so, when temperature measurement subassembly breaks down, its dismouting is very convenient, does benefit to maintenance or change work, further has improved the convenience of maintaining.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a CTP battery pack water cooling plate temperature measuring structure of the present utility model;

FIG. 2 is a side view of a CTP battery pack water cooled plate temperature measurement structure of the present utility model;

FIG. 3 is a block diagram of the point A of FIG. 1 in accordance with the present utility model;

FIG. 4 is a block diagram of the point B of FIG. 2 in accordance with the present utility model;

FIG. 5 is a cross-sectional view of a water inlet pipe and a water cooling bottom plate of the CTP battery pack water cooling plate temperature measuring structure of the utility model;

FIG. 6 is a water inlet pipe disassembly structure diagram of a CTP battery pack water cooling plate temperature measurement structure of the utility model;

FIG. 7 is a split structure diagram of a water inlet pipe and a temperature measuring assembly of the CTP battery pack water cooling plate temperature measuring structure of the utility model;

FIG. 8 is a cross-sectional view of a water inlet pipe of the CTP battery pack water cooling plate temperature measuring structure of the utility model;

fig. 9 is a diagram of a temperature measuring assembly of the CTP battery pack water cooling plate temperature measuring structure of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

As shown in fig. 1 to 9, the CTP battery pack water-cooling plate temperature measuring structure of the present utility model comprises a box body 1, a water-cooling bottom plate 2, a bracket 3, a water inlet pipe 4, a water outlet pipe 5, a temperature measuring component 6, a first bolt 7 and a sealing cover 8.

The box body 1 and the water-cooling bottom plate 2 are existing devices, and water inlet and outlet pipe openings of the traditional water-cooling bottom plate 2 are positioned in the box body 1, so that the risk of liquid leakage at the pipe opening connection position can be caused;

in the utility model, in order to avoid battery short circuit caused by liquid leakage, the water-cooling bottom plate 2 is arranged into two parts of a main plate 201 and a protruding part 202, wherein a common water-cooling flow channel 203 is arranged in the main plate 201 and the protruding part 202, the main plate 201 is fixed at the bottom of the box body 1 so as to seal the bottom of the box body 1, the protruding part 202 and the main plate 201 are of an integrated structure, the protruding part 202 extends to the outer side of the box body 1, and the water-cooling flow channel 203 in the protruding part 202 is only arranged at the right half part close to the main plate 201; the bracket 3 is positioned above the protruding part 202, and the bracket 3 is fixedly connected with the box body 1; the water inlet pipe 4 is detachably connected with the bracket 3, and the water inlet pipe 4 is communicated with the water cooling flow passage 203 through the protruding part 202; the water outlet pipe 5 is detachably connected with the bracket 3, and the water outlet pipe 5 is communicated with the water cooling flow channel 203 through the protruding part 202; the temperature measuring assembly 6 is detachably arranged on the water inlet pipe 4 and the water outlet pipe 5 and is used for detecting the medium temperature in the water inlet pipe 4 and the water outlet pipe 5; through the setting of above-mentioned structure for inlet tube 4 and outlet pipe 5 have all been installed in the outside of box 1, and temperature measurement subassembly 6 is installed on inlet tube 4 and outlet pipe 5, even take place the weeping at the pipeline interface department of inlet tube 4 and outlet pipe 5 or the installation department of temperature measurement subassembly 6, also can not influence the inside electric core subassembly of box 1, so can avoid appearing the condition of short circuit, prevent to cause electric core thermal runaway, and when temperature measurement subassembly 6 trouble, because it is located the outside of box 1, consequently need not to open the battery case lid on the package, can maintain it, the convenience of maintaining has been improved.

In this embodiment, as a preferred manner, the support 3 is in a rectangular frame structure, and a support plate 301 is fixed at the middle of the support 3; since vibration occurs due to conditions such as road surface during the traveling of the electric vehicle, in order to prevent the support 3 from being deformed to cause the water inlet pipe 4 and the water outlet pipe 5 to be bent and leaked, the support plate 301 is provided to strengthen the strength of the support 3, so as to improve structural stability.

In this embodiment, as a preferred manner, the first bolt 7 penetrates the left half of the protruding portion 202 and is fixedly connected with the bracket 3; in order to improve the stability of the protruding portion 202 and avoid vibration thereof, only the right half portion thereof is provided with the water-cooling flow channel 203, and the left half portion is used for mounting the first bolt 7 for fixing, so that the integrated strength of the battery pack can be improved, and the arrangement of the structure can prevent the mounting of the first bolt 7 from damaging the water-cooling flow channel 203.

In this embodiment, as a preferred manner, the water-cooling bottom plate 2 is provided with a connection pipe 204, and the water inlet pipe 4 includes a horizontal pipe 401, a vertical pipe 402, a first fixing plate 403, and a second bolt 404, where the connection pipe 204 is fixed on the protruding portion 202, and the connection pipe 204 is communicated with the water-cooling flow channel 203; the transverse tube 401 and the longitudinal tube 402 are of an integrated structure, the longitudinal tube 402 is spliced and sealed with the connecting tube 204, and the longitudinal tube 402 is communicated with the connecting tube 204; the first fixing plate 403 and the longitudinal tube 402 are in an integral structure; the second bolt 404 penetrates through the first fixing plate 403 and is fixedly connected with the bracket 3; in this way, after the second bolt 404 is removed, the water inlet pipe 4 can be pulled out from the connecting pipe 204, so that the disassembly, assembly and maintenance of the water inlet pipe are facilitated.

In this embodiment, as a preferred manner, the water inlet pipe 4 includes two sealing rings 405, where the two sealing rings 405 are fixed on the vertical pipe 402, and when the vertical pipe 402 is inserted into the connecting pipe 204, the sealing rings 405 abut against the outer wall of the vertical pipe 402 and the inner wall of the connecting pipe 204 at the same time, so as to be used for sealing the connection between the water inlet pipe 4 and the connecting pipe 204, thereby improving the sealing performance of the connection part and avoiding the liquid leakage phenomenon.

In this embodiment, as a preferred manner, the water inlet pipe 4 includes a sleeve 406, the sleeve 406 is fixed at the lower end of the vertical pipe 402, and when the vertical pipe 402 is inserted into the connecting pipe 204, the inner wall of the sleeve 406 abuts against the outer wall of the connecting pipe 204; the sleeve 406 is provided to further improve the connection stability and tightness between the water inlet pipe 4 and the connection pipe 204, so as to increase the structural strength; the connection structure of the sleeve 406 and the connection pipe 204 is not limited to this type, and an existing pipe connection method, for example, a ferrule structure may be adopted, the sleeve 406 is configured as a threaded sleeve, and is used as a nut, and an external thread is provided on the connection pipe 204, so that the sleeve 406 is connected with the connection pipe 204 by threads.

In this embodiment, as a preferred manner, the water inlet pipe 4 includes a supporting block 407 and a second fixing plate 408, the temperature measuring assembly 6 includes a detecting head 601, a connector lug 602, a wire harness 603 and a clamping plate 604, wherein the supporting block 407 is fixed on the top of the vertical pipe 402, and a detecting hole 4071 penetrating the vertical pipe 402 is provided in the middle of the supporting block 407; the second fixing plate 408 is fixedly connected with the supporting block 407, and the second fixing plate 408 is a T-shaped sliding block; the detection head 601 is inserted into the detection hole 4071; the connector lug 602 is connected with the detection head 601 through a wire harness 603; the clamping plate 604 is fixed at the side part of the connector lug 602, a T-shaped chute is arranged in the clamping plate 604, and the clamping plate 604 is fixed after being spliced with the second fixing plate 408; through the arrangement of the structure, when the temperature measuring component 6 is installed on the water inlet pipe 4, the clamping plate 604 and the second fixing plate 408 are only required to be inserted, so that the installation convenience of the temperature measuring component 6 is effectively improved, and the temperature measuring component 6 is also convenient to take down from the water inlet pipe 4.

In this embodiment, as a preferred manner, the clamping plate 604 is provided with a protruding block 6041, the second fixing plate 408 is provided with a groove 4081, one side of the protruding block 6041 is an inclined plane, and after the clamping plate 604 is inserted into the second fixing plate 408, the protruding block 6041 is clamped in the groove 4081; in this way, the temperature measuring component 6 can be prevented from sliding on the second fixing plate 408, the inclined surface on the protruding block 6041 is arranged to play a role of sliding guide, so that the temperature measuring component 6 can conveniently enter or exit the groove 4081, and the sliding disassembly and assembly of the temperature measuring component 6 are facilitated; because this kind of structure is when dismouting, and second fixed plate 408 receives the lug 6041 influence and has certain crooked, if the material is up to standard or life is longer, easily leads to second fixed plate 408 rupture, consequently temperature measurement subassembly 6 and inlet tube 4 also can adopt modes such as screw to connect fixedly.

In this embodiment, as a preferred manner, the water outlet pipe 5 has the same structure as the water inlet pipe 4, and the water outlet pipe 5 has the same installation structure as the temperature measuring component 6 on the water inlet pipe 4; the water inlet pipe 4 and the water outlet pipe 5 can be universal, so that the quantity of production materials is reduced; to prevent a line misconnection, the terminals 602 of the two temperature measuring assemblies 6 can be configured differently.

In this embodiment, as a preferred manner, the sealing cover 8 is a circular sleeve with one end closed, and the sealing cover 8 is inserted into the orifice of the transverse tube 401; the sealing cover 8 is used for sealing the pipeline before loading so as to prevent the pipeline from entering foreign matters.

The specific implementation steps are as follows;

in this device, fix the outside at box 1 with support 3 welded, then install inlet tube 4 and outlet pipe 5 on support 3, with support fixedly through support 3, inlet tube 4 and outlet pipe 5 all link up with the water-cooling runner 203 of water-cooling bottom plate 2 mutually, temperature measurement subassembly 6 is respectively installed one on inlet tube 4 and outlet pipe 5, in this way, inlet tube 4 and outlet pipe 5 are connected with circulation pipeline after, the interface all is located the outside of box 1, even take place the weeping, also can not influence the interior electric core of box 1, thereby effectually avoid appearing weeping short circuit phenomenon, and when temperature measurement subassembly 6 trouble, need not to take apart the case lid on the battery package and can maintain or change temperature measurement subassembly 6, the effectual convenience that has improved the operation.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A CTP battery pack water cooling plate temperature measuring structure comprises a box body (1), wherein the box body (1) is of a frame-shaped structure;

the method is characterized in that: also comprises a water-cooling bottom plate (2), a bracket (3), a water inlet pipe (4), a water outlet pipe (5) and a temperature measuring component (6), wherein,

the water-cooling bottom plate (2) comprises a main plate (201) and a protruding part (202), wherein common water-cooling flow channels (203) are arranged in the main plate (201) and the protruding part (202), the main plate (201) is fixed at the bottom of the box body (1) so as to seal the bottom of the box body (1), the protruding part (202) and the main plate (201) are of an integrated structure, the protruding part (202) extends to the outer side of the box body (1), and the water-cooling flow channels (203) in the protruding part (202) are only arranged at the right half part, close to the main plate (201);

the bracket (3) is positioned above the protruding part (202), and the bracket (3) is fixedly connected with the box body (1);

the water inlet pipe (4) is detachably connected with the bracket (3), and the water inlet pipe (4) is communicated with the water cooling flow passage (203) through the protruding part (202);

the water outlet pipe (5) is detachably connected with the bracket (3), and the water outlet pipe (5) is communicated with the water cooling flow channel (203) through the protruding part (202);

the temperature measuring assembly (6) is detachably arranged on the water inlet pipe (4) and the water outlet pipe (5) and is used for detecting the medium temperature in the water inlet pipe (4) and the water outlet pipe (5).

2. The CTP battery pack water cooled plate temperature measurement structure of claim 1, wherein: the support (3) is of a rectangular frame-shaped structure, and a supporting plate (301) is fixed in the middle of the support (3).

3. The CTP battery pack water cooled plate temperature measurement structure of claim 1, wherein: the device further comprises a first bolt (7), and the first bolt (7) penetrates through the left half part of the protruding part (202) and is fixedly connected with the bracket (3).

4. The CTP battery pack water cooled plate temperature measurement structure of claim 1, wherein: the water-cooling bottom plate (2) is provided with a connecting pipe (204), the water inlet pipe (4) comprises a transverse pipe (401), a longitudinal pipe (402), a first fixing plate (403) and a second bolt (404), wherein,

the connecting pipe (204) is fixed on the protruding part (202), and the connecting pipe (204) is communicated with the water cooling flow passage (203);

the transverse pipe (401) and the longitudinal pipe (402) are of an integrated structure, the longitudinal pipe (402) is spliced and sealed with the connecting pipe (204), and the longitudinal pipe (402) is communicated with the connecting pipe (204);

the first fixing plate (403) and the longitudinal pipe (402) are of an integrated structure;

the second bolt (404) penetrates through the first fixing plate (403) and is fixedly connected with the bracket (3).

5. The CTP battery pack water cooled plate temperature measurement structure of claim 4, wherein: the water inlet pipe (4) comprises sealing rings (405), two sealing rings (405) are fixed on the longitudinal pipe (402), and the sealing rings (405) are abutted against the outer wall of the longitudinal pipe (402) and the inner wall of the connecting pipe (204).

6. The CTP battery pack water cooled plate temperature measurement structure of claim 5, wherein: the water inlet pipe (4) comprises a sleeve (406), the sleeve (406) is fixed at the lower end of the longitudinal pipe (402), and the inner wall of the sleeve (406) abuts against the outer wall of the connecting pipe (204).

7. The CTP battery pack water cooled plate temperature measurement structure of claim 6, wherein: the water inlet pipe (4) comprises a supporting block (407) and a second fixed plate (408), the temperature measuring component (6) comprises a detection head (601), a connector lug (602), a wire harness (603) and a clamping plate (604), wherein,

the supporting block (407) is fixed at the top of the longitudinal pipe (402), and a detection hole (4071) communicated with the longitudinal pipe (402) is formed in the middle of the supporting block (407);

the second fixing plate (408) is fixedly connected with the supporting block (407), and the second fixing plate (408) is a T-shaped sliding block;

the detection head (601) is inserted into the detection hole (4071);

the connector lug (602) is connected with the detection head (601) through a wire harness (603);

the clamping plate (604) is fixed on the side part of the connector lug (602), a T-shaped sliding groove is formed in the clamping plate (604), and the clamping plate (604) is fixed after being spliced with the second fixing plate (408).

8. The CTP battery pack water cooled plate temperature measurement structure of claim 7, wherein: be provided with lug (6041) on cardboard (604), be provided with recess (4081) on second fixed plate (408), one side of lug (6041) is the inclined plane, and cardboard (604) are pegged graft with second fixed plate (408) back, and lug (6041) block is in recess (4081).

9. The CTP battery pack water cooled plate temperature measurement structure of claim 8, wherein: the structure of the water outlet pipe (5) is the same as that of the water inlet pipe (4), and the installation structure of the water outlet pipe (5) is the same as that of the temperature measuring component (6) on the water inlet pipe (4).

10. The CTP battery pack water cooled plate temperature measurement structure of claim 9, wherein: the sealing device also comprises a sealing cover (8), wherein the sealing cover (8) is a circular sleeve with one end being airtight, and the sealing cover (8) is inserted into the pipe orifice of the transverse pipe (401).