Reed type quick connector structure
Technical Field
The invention relates to the field of quick connector structure design, in particular to a reed type quick connector structure applied to an electric automobile battery thermal management system.
Background
The power battery is used as an energy carrier of the electric automobile, has development trend of high energy density and high power density, and simultaneously, complicated automobile running working conditions and high-temperature environments can lead to rapid accumulation of heat of the battery module, seriously influence electrochemical reaction performance and cycle life of the battery, and even lead to thermal runaway to cause combustion and explosion.
The quick connector is used as an important connecting component in the cooling system of the power battery, and affects the safety and reliability of the whole cooling system. The quick connector in the existing power battery cooling system has the following problems in actual use:
(1) The dimensional accuracy of the quick connector product is not easy to control, so that the tightness and the matching accuracy of the product are affected, and particularly after lateral stress, the sealing ring is easy to fail, so that the cooling pipeline is leaked.
(2) Most of locking mechanisms of the quick connector are plastic locking buckles, the performance of the locking mechanisms can be rapidly reduced at low temperature or high temperature, and risks of breakage and falling exist.
(3) The axial clearance of the quick connector is not easy to control, the up-down movement amount after the quick connector is inserted and used is large, and the abrasion of a sealing ring is easy to cause sealing failure.
(4) Most quick connectors cannot realize quick plug and pull, and the locking buckle is required to be manually pushed forwards to achieve a locking state; the assembly space of the reserved pipeline assembly of most pack packs is small, so that the pack packs are difficult to assemble or cannot be assembled easily, and the assembly efficiency and the customer experience of the pack packs are affected.
Disclosure of Invention
The invention aims to solve the technical problems that: aiming at the problems in the prior art, the reed type quick connector structure is provided, and the sealing performance of the quick connector is improved.
The technical problems to be solved by the invention are realized by adopting the following technical scheme: a reed type quick connector structure comprises a connector main body, a sliding sleeve, a connector male head and a reed, wherein an elastic sliding fit structure is formed between the sliding sleeve and the connector main body; when the joint male head and the joint main body are inserted into place through the limiting locking mechanism, a contact sealing structure is formed between the sealing contact part on the joint male head and the first sealing ring.
Preferably, the connector further comprises a second sealing ring, wherein the second sealing ring is arranged in the hollow inner cavity of the connector main body, and when the connector male head and the connector main body are inserted in place through the limiting locking mechanism, a contact sealing structure is formed between the sealing contact part on the connector male head and the second sealing ring.
Preferably, the connector further comprises a spacer ring, wherein the spacer ring is arranged in the hollow inner cavity of the connector body, and the spacer ring is arranged between the second sealing ring and the first sealing ring.
Preferably, the connector further comprises a collar fixedly mounted in the hollow cavity of the connector body.
Preferably, the cross section shape of the clamping ring is of a Y-shaped structure, a positioning groove is formed in the hollow inner cavity of the joint main body, and a clamping and fixing structure is formed between the Y-shaped structure on the clamping ring and the positioning groove.
Preferably, a chute is formed on the connector main body, a locking body is arranged in the chute, and a clamping groove is formed on the connector male head; when the sliding sleeve slides relative to the joint main body until the reed presses the locking body and the locking body is clamped between the sliding groove and the clamping groove, the limiting locking mechanism is formed by the locking body, the reed, the sliding groove and the clamping groove together.
Preferably, the spring plate comprises an elastic framework and an elastic pressing piece, the elastic pressing piece and the elastic framework are fixedly connected with each other, the cross section of the elastic pressing piece is of a V-shaped structure, and the spring plate presses the locking body through the elastic pressing piece.
Preferably, the device further comprises a retainer ring, wherein a limiting spigot is formed in the hollow inner cavity of the sliding sleeve, and the retainer ring is fixedly arranged on the joint main body; the movement travel of the sliding sleeve relative to the joint body is limited by the cooperation of the retainer ring and the limiting spigot.
Preferably, a guide groove is formed in the hollow inner cavity of the sliding sleeve, a spring installation cavity is formed between the sliding sleeve and the joint main body through the guide groove, a spring is arranged in the spring installation cavity, and an elastic sliding fit structure is formed between the sliding sleeve and the joint main body through the spring.
Preferably, a limit groove is formed in the hollow inner cavity of the sliding sleeve, a limit piece is formed on the reed, and a clamping limit structure is formed between the limit piece and the limit groove.
Compared with the prior art, the invention has the beneficial effects that: because form spacing locking mechanism between joint main part, joint male head, the reed, and install first sealing washer in the cavity inner chamber of joint main part, when inserting in place through spacing locking mechanism between joint male head and the joint main part, form contact seal structure between the sealed contact part on the joint male head and the first sealing washer, through spacing locking mechanism and first sealing washer cooperation, make and keep the locking state through spacing locking mechanism between joint main part and the joint male head to make the sealing performance of quick connector improved by a wide margin, and the structure is simpler, compact, convenient operation.
Drawings
Fig. 1 is a three-dimensional view of a reed-type quick connector structure according to the present invention.
Fig. 2 is a cross-sectional view of a reed-type quick connector structure according to the present invention.
Fig. 3 is a cross-sectional view of the connector body of fig. 1 or 2.
Fig. 4 is a three-dimensional structural view of the joint body of fig. 1 or 2.
Fig. 5 is a cross-sectional view of the sliding sleeve of fig. 1 or 2.
Fig. 6 is a cross-sectional view of the male joint of fig. 1 or 2.
Figure 7 is a three-dimensional block diagram of the reed of figure 1 or figure 2.
Item label name in figure: the novel high-pressure sealing device comprises a 1-outer sealing ring, a 2-connector body, a 3-locking body, a 4-spacer ring, a 5-clamping ring, a 6-spring, a 7-sliding sleeve, an 8-clamping ring, a 9-connector male head, a 10-first sealing ring, a 11-second sealing ring, a 12-spring installation cavity, a 13-reed, a 21-sliding groove, a 22-annular groove, a 23-positioning groove, a 24-limiting boss, a 71-guiding groove, a 72-locking annular belt, a 73-limiting groove, a 74-limiting spigot, a 91-clamping groove, a 92-sealing contact part, a 93-shoulder, a 94-guiding inclined plane, a 131-elastic framework, a 132-elastic pressing sheet and a 133-limiting sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The reed type quick connector structure as shown in fig. 1 and 2 mainly comprises a connector main body 2, a sliding sleeve 7, a connector male head 9 and a reed 13, wherein an annular groove is arranged at one end of the connector main body 2, an outer sealing ring 1 is arranged in the annular groove, a first sealing ring 10 is arranged in a hollow inner cavity of the connector main body 2, and the first sealing ring 10 is usually fixed in the hollow inner cavity of the connector main body 2 in an interference fit mode. The reed 13 is fixedly arranged in the hollow cavity of the sliding sleeve 7, a limit locking mechanism is formed among the joint main body 2, the joint male head 9 and the reed 13, and an elastic sliding fit structure is formed between the sliding sleeve 7 and the joint main body 2. In particular, the method comprises the steps of,
as shown in fig. 3 and 4, the concrete structure of the joint body 2 is that a plurality of sliding grooves 21, annular grooves 22 and limiting bosses 24 are formed on the outer circumference of the joint body 2, the sliding grooves 21 are generally arranged, the outer circumference of the ring joint body 2 is uniformly distributed, and the cross section of each sliding groove 21 is preferably in a conical structure. The sliding groove 21 is internally provided with a locking body 3, and the locking body 3 is usually a steel ball. The specific structure of the sliding sleeve 7 is shown in fig. 5, and a guide groove 71, a locking ring belt 72, a limit groove 73 and a limit spigot 74 are respectively formed in the hollow cavity of the sliding sleeve 7. The specific structure of the connector male head 9 is shown in fig. 6, a shoulder 93 is formed on one end of the connector male head 9, a clamping groove 91 and a guiding inclined plane 94 are respectively formed on the shoulder 93, and a sealing contact portion 92 is formed on the other end of the connector male head 9. The specific structure of the reed 13 is shown in fig. 7, and comprises an elastic framework 131, an elastic pressing sheet 132 and a limiting sheet 133, wherein the elastic framework 131 is preferably an annular structure with a fracture, the elastic pressing sheet 132 and the limiting sheet 133 are distributed around the elastic framework 131, a saw-tooth structure is formed between the elastic pressing sheet 132 and the limiting sheet 133, and the elastic pressing sheet 132 and the limiting sheet 133 are respectively fixedly connected with the elastic framework 131 in a V-shaped structure in section.
The spring 13 is preloaded in the hollow cavity of the sliding sleeve 7, and normally, a limit groove 73 can be formed in the hollow cavity of the sliding sleeve 7, and the elastic framework 131 on the spring 13 and the limit groove 73 form fixed connection in an interference fit manner, so that a clamping limit structure is formed between the limit piece 133 and the limit groove 73. The sliding sleeve 7 and the joint main body 2 form a spring installation cavity 12 through a guide groove 71, a spring 6 is arranged in the spring installation cavity 12, and an elastic sliding fit structure is formed between the sliding sleeve 7 and the joint main body 2 through the spring 6. When the sliding sleeve 7 slides relative to the joint main body 2 until the reed 13 presses the locking body 3 and the locking body 3 is clamped between the sliding groove 21 and the clamping groove 91, the locking body 3, the reed 13, the sliding groove 21 and the clamping groove 91 jointly form a limiting locking mechanism, and at this time, the reed 13 presses the locking body 3 through the elastic pressing piece 132. When the joint male head 9 and the joint main body 2 are inserted into position through the limit locking mechanism, a contact sealing structure is formed between the sealing contact part 92 on the joint male head 9 and the first sealing ring 10.
In order to further improve the sealing performance of the quick-connect connector, the hollow inner cavity of the connector main body 2 can be designed into an inner cavity with a stepped structure, a second sealing ring 11 is additionally arranged in the hollow inner cavity of the connector main body 2, the second sealing ring 11 is usually fixedly installed in the hollow inner cavity of the connector main body 2 in an interference fit manner, and when the connector male head 9 and the connector main body 2 are connected in place through a limiting locking mechanism, a sealing contact part 92 on the connector male head 9 forms a contact sealing structure with the first sealing ring 10 and the second sealing ring 11 at the same time, so that a double sealing structure can be formed, as shown in fig. 2.
The working principle of the reed type quick connector is as follows:
before the connector male head 9 is not inserted into the connector main body 2 assembly, the elastic pressing piece 132 on the reed 13 performs limiting through the limiting boss 24 on the outer circumference of the connector main body 2, so that the sliding sleeve 7 is limited to move leftwards relative to the connector main body 2, and meanwhile, the elastic pressing piece 132 on the reed 13 performs a certain limiting function on the corresponding locking body 3, so that the locking body 3 is prevented from falling out of the connector main body 2, as shown in fig. 2.
In the process of inserting the connector male head 9 into the connector main body 2 assembly, the guide inclined surface 94 on the connector male head 9 presses the locking body 3, so that the locking body 3 moves towards the outer wall of the connector main body 2 along the sliding groove 21, the elastic pressing piece 132 on the reed 13 is continuously pressed by the locking body 3, and finally the elastic pressing piece 132 is separated from the limiting boss 24 on the connector main body 2. At this time, as shown in fig. 2, the sliding sleeve 7 moves leftwards relative to the joint main body 2 under the action of the elastic force of the spring 6; when the locking body 3 falls into the clamping groove 91 on the connector male head 9 and the locking ring belt 72 on the sliding sleeve 7 blocks the locking body 3, the locking body 3 is clamped between the sliding groove 21 and the clamping groove 91, the spring 13 presses the locking body 3 through the elastic pressing piece 132 on the spring 13, so that the locking body 3 cannot move towards the outer wall of the connector main body 2, and a limiting locking mechanism is formed by the locking body 3, the spring 13, the sliding groove 21 and the clamping groove 91 together, so that the locking between the connector main body 2 assembly and the connector male head 9 is realized.
When the joint male head 9 and the joint main body 2 need to be unlocked, as shown in fig. 2, the sliding sleeve 7 is pulled rightward relative to the joint main body 2 by hand until the elastic pressing piece 132 on the reed 13 is separated from the locking body 3, and at this time, the limiting locking mechanism is in an unlocking state, so that the joint male head 9 can be directly pulled out from the joint main body 2.
In the repeated plugging and unplugging operation process of the connector male head 9 relative to the connector main body 2, in order to ensure the sealing performance between the sealing contact part 92 on the connector male head 9 and the first sealing ring 10 and the second sealing ring 11 respectively and further improve the reliability of the sealing performance of the quick plug connector, a spacing ring 4 and a clamping ring 5 can be additionally arranged in the hollow cavity of the connector main body 2, the spacing ring 4 and the clamping ring 5 are usually fixedly arranged in the hollow cavity of the connector main body 2 in an interference fit manner, the spacing ring 4 is arranged between the second sealing ring 11 and the first sealing ring 10, and the clamping ring 5 is arranged between the second sealing ring 11 and the sliding groove 21. Generally, the cross-sectional shape of the collar 5 is designed into a Y-shaped structure, a positioning groove 23 is formed in the hollow cavity of the connector body 2, and a clamping and fixing structure is formed between the Y-shaped structure on the collar 5 and the positioning groove 23, as shown in fig. 3; when the joint male head 9 and the joint main body 2 are inserted in place through the limit locking mechanism, a contact sealing structure is formed between the spacer ring 4 and the sealing contact part 92 on the joint male head 9, and a contact sealing structure is also formed between the clamping ring 5 and the sealing contact part 92 on the joint male head 9, as shown in fig. 2.
After the structural design is adopted, the setting positions of the first sealing ring 10 and the second sealing ring 11 in the hollow cavity of the connector main body 2 can be well limited by arranging the spacing ring 4 and the clamping ring 5, and in the repeated inserting and extracting operation process of the connector male head 9 relative to the connector main body 2, the first sealing ring 10 and the second sealing ring 11 can be effectively prevented from axially moving relative to the connector main body 2, so that the compression amount of the first sealing ring 10 and the second sealing ring 11 can be accurately controlled, the sealing performance between the sealing contact part 92 on the connector male head 9 and the first sealing ring 10 and the second sealing ring 11 can be ensured, and in addition, the sealing contact part 92 on the connector male head 9 and the spacing ring 4 and the clamping ring 5 can form a contact sealing structure, so that the quick connector forms a quadruple sealing structure, and the sealing reliability of the quick connector is greatly improved.
In order to ensure the safety and reliability of the sliding sleeve 7 sliding relative to the joint main body 2, a retainer ring 8 may be fixedly connected to the joint main body 2, and a limit stop 74 may be formed in the hollow cavity of the sliding sleeve 7. In general, the retainer ring 8 is a steel wire retainer ring, and the retainer ring 8 is directly clamped and fixed in the annular groove 22 on the joint main body 2, as shown in fig. 2, so that the movement stroke of the sliding sleeve 7 relative to the joint main body 2 can be limited by matching the retainer ring 8 with the limiting spigot 74; when the limit stop 74 on the sliding sleeve 7 contacts with the end face of the retainer ring 8, the sliding limit action of the sliding sleeve 7 relative to the joint main body 2 is achieved.
In the invention, when the connector is installed, the connector male head 9 is directly inserted into the connector main body 2, and after the connector male head 9 is inserted into place, the connector male head and the connector main body 2 are automatically locked. The connector main body 2, the sliding sleeve 7 and the connector male head 9 can be made of aluminum alloy materials, compared with a traditional plastic quick connector structure, the connector has higher structural strength and vibration resistance level, better electrolyte resistance, flame retardance and other capacities, the structure is simpler and more compact, the operation is convenient, the repeated plugging and unplugging times between the connector male head 9 and the connector main body 2 can reach millions, the failure risk is very low, and the service life of a quick connector product is greatly prolonged.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.