CN220152167U - Water stop joint for thermal management temperature control unit - Google Patents

Abstract

The utility model discloses a water stop joint for a thermal management temperature control unit, and relates to the field of water stop joints. The utility model comprises a butt joint, a butt joint and a U-shaped limit steel wire; the butt joint comprises a joint body, a necking step, a retaining ring, a first plug-in limiting hole, a positioning groove, a retainer, a valve core, a spring, a first sealing ring, a second sealing ring and a limiting baffle disc, wherein the valve core, under the action of spring upward pressure, forms a sealing line with the first sealing ring and the second sealing ring; the butt joint connector comprises a positioning groove, a positioning lug, a second plug-in limiting hole and a necking side wall. The utility model can not cause the outflow of cooling liquid after the mating connector is pulled out, so that the heat exchange loop of the battery pack has a water stopping function; the water stop joint has a simple structure, is favorable for the rapid overhaul and maintenance of the thermal management temperature control system, improves the efficiency and saves the time and the cost.

Description

Water stop joint for thermal management temperature control unit

Technical Field

The utility model belongs to the field of water-stopping joints, and particularly relates to a water-stopping joint for a thermal management temperature control unit.

Background

The battery is one of the most important components in the new energy automobile, the performance of the battery has very close relation with the temperature, the power battery can generate a large amount of heat in the charging/discharging process, and the charging/discharging performance can be influenced due to the fact that the temperature is too low in colder weather, so that the battery needs to be cooled down through a thermal management system when overheated, and needs to be heated to a certain extent through the thermal management system when overcooled, so that the battery can perform better performance, and the thermal management system and a corresponding unit are provided.

Such as CN201220420259.8 battery thermal management systems, where prior art solutions of battery thermal management systems and modified bypass-added thermal management systems are mentioned; whether the prior art scheme or the improved type is adopted, an air-conditioning refrigeration loop and a battery thermal management loop are adopted for battery thermal management, the corresponding battery thermal management loop specifically shares the heat exchanger with the air-conditioning refrigeration loop, in the heat exchanger, the refrigerant in the air-conditioning refrigeration loop and the cooling liquid in the battery thermal management loop complete heat exchange, and finally the cooling liquid is pumped into the heat exchange loop in the battery pack under the action of an electric water pump, an electric heater and the heat exchanger; the connection positions between the inlet and the outlet of the cooling liquid pipeline and the heat exchange loop of the battery pack are usually connected by adopting connectors for ensuring convenient installation, maintenance, test and replacement.

The joints employed in this location in the prior art include: CN202121644536.9 is a metal joint of an integrated sensor, a battery pack for an automobile, CN201721354852.6 is a coolant pipeline joint for the battery pack, the battery pack with the coolant pipeline joint and CN202120971376.2 is a high-flow quick joint for battery box coolant; the above-mentioned joint can't satisfy and break away from after coolant pipe way and battery package heat exchange circuit are taken apart, still guarantee that the coolant liquid that is located the battery package inside does not flow, and the inside stagnant water function of battery package heat exchange circuit is not had to current joint promptly, and the coolant liquid can't keep in the system during maintenance, therefore to above problem, provides a stagnant water joint for thermal management control by temperature change unit and has important meaning.

Disclosure of Invention

The utility model provides a water stop joint for a thermal management temperature control unit, which comprises a butt joint, wherein a retainer, a spring, a valve core, a retainer ring, a positioning groove and a sealing ring are arranged in the butt joint; after the U-shaped limiting steel wire is pulled out and the butt joint connector is pulled out, the valve core bottom is extruded upwards through the spring, so that the valve core is stably sleeved at the top of the retainer, and the stable sealing of cooling liquid is kept under the sealing of the first sealing ring and the second sealing ring through the limiting of the retaining ring, so that the butt joint connector connected with the battery pack heat exchange circuit can not cause the outflow of the cooling liquid after the butt joint connector connected with the cooling liquid pipeline is pulled out, the battery pack heat exchange circuit has a water stopping function, and the problem in the background art is solved.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a water stop joint for a thermal management temperature control unit, which comprises a butt joint, a butt joint and a U-shaped limit steel wire, wherein the butt joint is connected with the U-shaped limit steel wire;

the butt joint is in a radial passage valve shape and comprises a joint body, one end of the joint body is provided with a necking step, the other end of the joint body is provided with a holding ring in a flaring shape, the upper part of the holding ring is provided with a ring sleeve with a side wall provided with a first splicing limiting hole, and the inner side wall of the ring sleeve is provided with a positioning groove; the upper part of the necking step is provided with an I-shaped retainer which is consistent with the radial passage and is coaxially arranged, the upper part of the retainer is coaxially sleeved with a valve core, the lower part of the valve core is sleeved with a spring, the side wall of the connector body, which is positioned at the lower part of the retainer, is circumferentially provided with a first sealing ring, the position, which is positioned at the inner core of the valve core, is provided with a second sealing ring which is in sealing fit with a plug at the upper part of the retainer, and the upper part of the plug is provided with a limiting baffle disc which is used for limiting the radial height of the valve core in a wide mode, so that the valve core, under the action of upward pressing of the spring, forms a sealing line with the first sealing ring and the second sealing ring;

the butt joint is in a radial passage valve shape, the outer side wall is provided with a positioning convex block matched with the positioning groove and a second inserting limiting hole corresponding to the first inserting limiting hole, and a necking side wall corresponding to the inner side wall of the retaining ring is arranged below the positioning convex block;

the butt joint is inserted into the joint body, the valve core is extruded downwards, the second sealing ring is located at the middle short-diameter waist of the retainer, the shrinkage side wall and the inner side wall of the retainer are in fit sealing, the positioning protruding block is pressed downwards to the bottom of the positioning groove and then positioned, and the U-shaped limiting steel wire is inserted into the first inserting limiting hole and the second inserting limiting hole from the side part to achieve stable limiting.

Further, the diameter of the butt joint is smaller than that of the joint body, and the butt joint and the joint body are coaxially arranged after insertion.

Further, the retaining ring, the necking step, the retainer, the valve core, the spring, the first sealing ring and the second sealing ring are coaxially arranged.

Further, the retainer comprises a top, a waist, a limiting baffle disc and a scattering connecting arm which is positioned at the bottom end of the waist and fixedly connected with the surface of the necking step.

Furthermore, two groups of first plug limiting holes are transversely symmetrically formed in the outer side of the annular sleeve, and two groups of second plug limiting holes are transversely symmetrically formed in the two sides of the butt joint connector, so that the U-shaped limit steel wire plug arms are directly inserted into the first plug limiting holes and the second plug limiting holes to realize stable limiting.

Further, the top surface of the plug is flush with the lower level of the retaining ring.

Compared with the prior art, the utility model has the following beneficial effects:

(1) After the butt joint is inserted into the butt joint, the butt joint and the butt joint are stably connected through the U-shaped limiting steel wire through the plug limiting holes, and at the moment, the valve core enables the butt joint to be communicated with the butt joint under the extrusion of the butt joint, so that the cooling liquid in the system is kept to be communicated; after the U-shaped limiting steel wire is pulled out and the butt joint connector is pulled out, the bottom of the valve core is extruded upwards through a spring, so that the valve core is stably sleeved at the top of the retainer, and the stable sealing of cooling liquid is kept under the sealing of the first sealing ring and the second sealing ring through the limiting of the retaining ring, so that the butt joint connector connected with the battery pack heat exchange circuit can not cause the outflow of the cooling liquid after the butt joint connector connected with the cooling liquid pipe is pulled out, and the battery pack heat exchange circuit has a water stopping function;

(2) The water stop joint is simple in structure, is favorable for quick overhaul and maintenance of a thermal management temperature control system, can ensure that cooling water in a battery pack heat exchange loop is not required to be discharged, is good in convenience, improves efficiency, and saves time and cost.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present 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 schematic view of the overall structure of a water stop joint for a thermal management and temperature control unit according to the present utility model;

FIG. 2 is a schematic view of the structure of the view angle A in FIG. 1;

FIG. 3 is a schematic view of the individual butt joint of FIG. 1;

FIG. 4 is a side view of the structure of the butt joint of FIG. 3;

FIG. 5 is an internal structural view of the individual butt joint in a valve element sealed condition;

FIG. 6 is a schematic view of the cage of FIG. 5;

FIG. 7 is a schematic view of the mating connector of FIG. 1;

FIG. 8 is an internal structural view of the butt joint after the butt joint is inserted into the butt joint to realize the communication of the channels;

FIG. 9 is a schematic view of the flow path of the cooling fluid in the connected state of FIG. 8;

in the drawings, the list of components represented by the various numbers is as follows:

1-butt joint, 101-joint body, 102-retainer, 1021-limit baffle disc, 1022-plug, 1023-waist, 1024-scattering connecting arm, 103-positioning groove, 104-valve core, 105-second sealing ring, 106-spring, 107-first sealing ring, 108-retainer ring, 109-first plug-in limit hole, 110-necking step, 2-butt joint, 201-second plug-in limit hole, 202-positioning lug, 203-support, 3-necking side wall.

Detailed Description

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

In the description of the present utility model, it should be understood that the terms "one end," "the other end," "the side wall," "the interior," "the upper," "the lower," "the below," and the like indicate an orientation or positional relationship, and are merely for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the existing battery thermal management system, the common joint without water stopping function is adopted for the joint between the cooling liquid and the battery pack, the battery thermal management system is provided with the heater, the water pump and the connecting pipeline, so that the regular maintenance is needed, the condition of aging and damage of the heater or the part can be also existed in the use process, the replacement and the maintenance are needed after the disassembly of the part or the pipeline, the cooling liquid in the battery pack thermal exchange loop can directly flow out due to the lack of water stopping function, the maintenance time and the cost are increased, and the cooling liquid in the battery pack cannot play a role and cannot be kept due to the outflow, so that the water stopping joint with the water stopping function is provided based on the problems, the water stopping joint with the advantages of simple structure, rapid disassembly and water stopping function is provided, convenience of maintenance and maintenance in the battery thermal management system is improved, and time and cost are saved.

Referring to fig. 1-9, a water stop joint for a thermal management temperature control unit of the present utility model includes a butt joint 1, a butt joint 2, and a U-shaped limiting steel wire 3, wherein in the specific embodiment of the butt joint 1, the tail end of the butt joint 1 is connected with an outlet of a heat exchange circuit of a battery pack, the tail end of the butt joint 2 is connected with an output end of a coolant pipeline, and the U-shaped limiting steel wire 3 is plug-in type, so as to realize connection and cooperation between the butt joint 1 and the butt joint 2;

the butt joint 1 is in a radial passage valve shape and comprises a joint body 101, one end of the joint body 101 is provided with a necking step 110, the other end of the joint body is provided with a holding ring 108 in a flaring shape, the holding ring keeps the butt joint 2 stable after being inserted, the upper part of the holding ring 108 is provided with a ring sleeve with a side wall provided with a first inserting limiting hole 109, and the inner side wall of the ring sleeve is provided with a positioning groove 103; the upper part of the necking step 110 is provided with an I-shaped retainer 102 which is consistent with the radial passage and is coaxially arranged, the retainer 102 is I-shaped in front view or side view, the upper part of the retainer 102 is coaxially sleeved with a valve core 104, the lower part of the valve core 104 is sleeved with a spring 106, the side wall of the joint body 101, which is positioned at the lower part of a retaining ring 108, is circumferentially provided with a first sealing ring 107, the position, which is positioned at the inner core of the valve core 104, is provided with a second sealing ring 105 which is in sealing fit with a top 1022 at the upper part of the retainer 102, and the upper part of the top 1022 is provided with a limiting baffle disk 1021 which limits the radial height of the valve core 104 in a wide mode, so that the valve core 104 forms a sealing line with the first sealing ring 107 and the second sealing ring 105 under the upward pressing action of the spring 106; the spring 106 is always in compression, given the upward pressure of the spool 104;

the mating connector 2 is in a radial passage valve shape, the outer side wall is provided with a positioning lug 202 matched with the positioning groove 103 and a second plug limiting hole 201 corresponding to the first plug limiting hole 109, and a necking side wall 203 corresponding to the inner side wall of the retaining ring 108 is arranged below the positioning lug 202;

the butt joint 2 is inserted into the joint body 101, the valve core 104 is extruded downwards, the second sealing ring 105 is positioned at the waist 1023 with the middle short diameter of the retainer 102, the necking side wall 203 is attached and sealed with the inner side wall of the retainer 108, the positioning lug 202 is pressed down to the bottom of the positioning groove 103 and then positioned, and the U-shaped limiting steel wire 3 is inserted into the first inserting limiting hole 109 and the second inserting limiting hole 201 from the side to realize stable limiting.

Wherein, the diameter of the butt joint 2 is smaller than that of the joint body 101, and the butt joint 2 and the joint body 101 are coaxially arranged after being inserted.

The retaining ring 108, the necking step 110, the retainer 102, the valve core 104, the spring 106, the first sealing ring 107 and the second sealing ring 105 are coaxially arranged.

The retainer 102 includes a top 1022, a waist 1023, a limiting disk 1021, and a scattering connecting arm 1024 located at the bottom end of the waist 1023 and fixedly connected to the surface of the necking step 110.

Two groups of first plug limiting holes 109 are transversely and symmetrically formed in the outer side of the loop, two groups of second plug limiting holes 201 are transversely and symmetrically formed in the two sides of the mating connector 2, and the plug arms of the U-shaped limiting steel wires 3 are directly inserted into the first plug limiting holes 109 and the second plug limiting holes 201 to achieve stable limiting; the structure of the first plugging limiting hole 109 and the second plugging limiting hole 201 can be seen and understood from fig. 1, 4, 5 and 7.

Wherein the top surface of the plug 1022 is flush with the lower level of the retaining ring 108.

The principle of the technical scheme is as follows:

in the butt joint state: the outlet of the battery pack heat exchange loop is connected with the output end of the cooling liquid pipeline through a water stop joint in the technical scheme, as shown in fig. 8-9, at the moment, the U-shaped limit steel wire 3 is spliced to realize the connection and matching of the butt joint 1 and the butt joint 2, and a communication path of cooling liquid is maintained, as shown in fig. 9, the cooling liquid flows in from the bottom of the butt joint 1 through a gap between the scattering connecting arms 1024 and flows out upwards from a gap between the second sealing ring 105 and the waist 1023, and flows into the butt joint 2; at the moment, the U-shaped limit steel wire 3 is spliced to ensure that the butt joint 1 and the butt joint 2 keep the stability of connection;

in the disengaged state: namely, the counter-coupling joint 2 is pulled out of the counter-coupling joint 1, the output end of the cooling liquid pipeline is detached from the outlet of the battery pack heat exchange circuit, as shown in fig. 5, specifically, the U-shaped limit steel wire 3 is pulled out of the first plug limit hole 109 and the second plug limit hole 201, the valve core 104 is lifted upwards under the upward pressing action of the spring 106, and finally, the valve core 104 is kept stable under the blocking of the limit baffle 1021, at the moment, the first sealing ring 107 is extruded with the side wall to realize the water sealing of the outer side wall, and the second sealing ring 105 of the inner axis of the valve core 104 is extruded with the outer side wall of the plug 1022 to realize the water sealing of the inner side part, so that after the counter-coupling joint 2 is pulled out, the cooling liquid in the battery pack heat exchange circuit can still be ensured not to flow out, and the water stopping function is realized.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (6)

1. The water stop joint for the thermal management temperature control unit is characterized by comprising a butt joint (1), a butt joint (2) and a U-shaped limit steel wire (3);

the butt joint (1) is in a radial passage valve shape and comprises a joint body (101), one end of the joint body (101) is provided with a necking step (110), the other end of the joint body is provided with a holding ring (108) in a flaring shape, the upper part of the holding ring (108) is provided with a ring sleeve with a side wall provided with a first inserting limiting hole (109), and the inner side wall of the ring sleeve is provided with a positioning groove (103); the upper part of the necking step (110) is provided with an I-shaped retainer (102) which is consistent with the radial passage and is coaxially arranged, the upper part of the retainer (102) is coaxially sleeved with a valve core (104), the lower part of the valve core (104) is sleeved with a spring (106), the side wall of the lower part of a retainer ring (108) in the joint body (101) is circumferentially provided with a first sealing ring (107), the position of the inner core of the valve core (104) is provided with a second sealing ring (105) which is in sealing fit with a top (1022) on the upper part of the retainer (102), and the upper part of the top (1022) is provided with a limiting baffle disc (1021) which is used for limiting the radial height of the valve core (104) in a wide mode, so that the valve core (104) forms a sealing line with the first sealing ring (107) and the second sealing ring (105) under the upward pressing action of the spring (106);

the butt joint (2) is in a radial passage valve shape, the outer side wall is provided with a positioning lug (202) matched with the positioning groove (103) and a second inserting limiting hole (201) corresponding to the first inserting limiting hole (109), and a necking side wall (203) corresponding to the inner side wall of the retaining ring (108) is arranged below the positioning lug (202);

the butt joint connector (2) is inserted into the connector body (101), the valve core (104) is extruded downwards, the second sealing ring (105) is located at the waist (1023) of the middle short diameter of the retainer (102), the necking side wall (203) is attached to the inner side wall of the retainer ring (108) and sealed, the positioning protruding block (202) is pressed down to the bottom of the positioning groove (103) and then positioned, and the U-shaped limiting steel wire (3) is inserted into the first inserting limiting hole (109) and the second inserting limiting hole (201) from the side part to achieve stable limiting.

2. A water stop joint for a thermal management and temperature control unit according to claim 1, wherein the diameter of the counter-joint (2) is smaller than the diameter of the joint body (101), and the counter-joint (2) and the joint body (101) are arranged coaxially after insertion.

3. The water stop joint for the thermal management temperature control unit according to claim 1, wherein the retaining ring (108), the necking step (110), the retainer (102), the valve core (104), the spring (106), the first sealing ring (107) and the second sealing ring (105) are coaxially arranged.

4. The water stop joint for a thermal management and temperature control unit according to claim 1, wherein the retainer (102) comprises a plug (1022), a waist (1023), a limiting baffle disk (1021) and a scattering connecting arm (1024) which is positioned at the bottom end of the waist (1023) and fixedly connected with the surface of the necking step (110).

5. The water stop joint for the thermal management temperature control unit according to claim 1, wherein the first plug limiting holes (109) are transversely and symmetrically formed in two groups at the outer side part of the loop, and the second plug limiting holes (201) are transversely and symmetrically formed in two groups at two sides of the mating joint (2), so that the plug arms of the U-shaped limiting steel wires (3) can be directly inserted into the first plug limiting holes (109) and the second plug limiting holes (201) to realize stable limiting.

6. A water stop joint for a thermal management temperature control unit according to claim 1, wherein the upper surface of the plug (1022) is flush with the lower level of the retaining ring (108).