Double-body thermostat base structure

Abstract

The utility model relates to the technical field of thermostats, in particular to a double-body thermostat base structure which comprises a base structure body, a first thermostat mounting hole and a second thermostat mounting hole are formed in the base structure body, and a cavity connecting channel is communicated between the first thermostat mounting hole and the second thermostat mounting hole. An embedded sleeve is embedded in the base structure body and located in the cavity connecting channel, so that the first thermostat mounting hole communicates with the second thermostat mounting hole through the embedded sleeve. According to the double-body thermostat base structure, the copper or stainless steel embedded sleeve is embedded and formed together when a product is subjected to die casting or injection molding, the two thermostat cavities are connected, the opening problem caused by core pulling in the base is solved, the product performance stability is further improved, and the service life of the product is prolonged. And the problem of easy leakage risk caused by plugging with a bowl-shaped plug after an opening is formed by core pulling of a traditional base cavity is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of thermostats, in particular to a double-body thermostat base structure. Background Art

[0002] The thermostat is a component used by fuel vehicles to control the large and small cycles of the engine cooling system. Its performance directly affects the performance of the engine. When a fault occurs, it is very easy to cause the engine temperature to be too high or even "boiling", or the warm-up time is long, resulting in increased fuel consumption. As car consumers have higher and higher requirements for car comfort, the thermostat function not only controls the engine cooling system, but also integrates functions such as heating, EGR cooler, and oil cooler. One thermostat body can no longer meet the needs. Therefore, the dual-body thermostat appears, which connects the two thermostat bodies through a channel and integrates them together, with more comprehensive functions and a wider control range.

[0003] The base of the existing dual-body thermostat is the focus of the product. Currently, die-cast aluminum or PA66 is mostly used. The inner cavity connecting channel of the base is obtained by core pulling from the mold. The blank is then machined and the resulting opening is sealed with a bowl-shaped plug. However, there is a risk of leakage in the seal, which affects the use of the thermostat. Utility Model Content

[0004] The purpose of the utility model is to provide a double-body thermostat base structure to solve the problem raised in the above-mentioned background technology that the base of the double-body thermostat on the market currently has an opening due to the core pulling out, and the opening is sealed by a bowl-shaped plug, but there is a risk of leakage in the seal, which affects the use of the thermostat.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-body thermostat base structure, including a base structure main body, a first thermostat mounting hole and a second thermostat mounting hole are provided on the base structure main body, and a cavity connecting channel is connected between the first thermostat mounting hole and the second thermostat mounting hole, and an inlaid sleeve is embedded in the base structure main body, and the inlaid sleeve is located in the cavity connecting channel, so that the first thermostat mounting hole and the second thermostat mounting hole are connected through the inlaid sleeve.

[0006] Preferably, a mold cover and a mold base are respectively provided at the upper and lower ends of the base structure body, and a first side mold and a second side mold are respectively provided at the left and right sides of the base structure body.

[0007] Preferably, the base structure body and the embedded sleeve are integrally injection molded, and a cavity formed by the mold cover, the mold base, the first side mold and the second side mold after mold closing has the same shape as the base structure body.

[0008] Preferably, when the base structure body is injection molded, the embedded sleeve is placed on the mold base, and the embedded sleeve is snap-fitted with the portion of the mold base used to form the second thermostat mounting hole, and the embedded sleeve is snap-fitted with the portion of the mold base used to form the first thermostat mounting hole.

[0009] Preferably, one end of the embedded sleeve is a blocking structure, and the opening at the other end of the embedded sleeve is connected to the side of the second thermostat mounting hole.

[0010] Preferably, a through hole is opened on the side surface of the embedded sleeve, and the through hole on the side surface of the embedded sleeve is connected to the bottom of the first thermostat mounting hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the dual-body thermostat base structure is formed together during die casting or injection molding of the product by embedding a copper or stainless steel embedded sleeve, connecting the two thermostat cavities, solving the problem of openings caused by core pulling inside the base, thereby improving the stability of product performance and avoiding the problem of leakage risk caused by using a bowl-shaped plug to seal the opening caused by core pulling in the traditional base cavity. The dual-body thermostat base structure avoids the generation of core pulling openings by embedding the sleeve, while reducing the process of pressing the bowl-shaped plug and the machining process of the base cavity, and has higher production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A diagram of the existing dual-body thermostat base structure being sealed by a bowl-shaped plug;

[0013] Figure 2 This is a schematic diagram of a three-dimensional structure of a dual-body thermostat base structure with an embedded sleeve embedded in the main body of the utility model;

[0014] Figure 3 It is a schematic diagram of the connection structure between the embedded sleeve and the mold base of a dual-body thermostat base structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the connection structure between the embedded sleeve and the mold of a dual-body thermostat base structure of the utility model;

[0016] Figure 5 The utility model is a schematic diagram of a cross-sectional structure of a dual-body thermostat base structure and an embedded sleeve connection.

[0017] In the figure: 1. base structure body; 101. first thermostat mounting hole; 102. second thermostat mounting hole; 2. inlay sleeve; 201. cavity connecting channel; 3. mold base; 4. mold cover; 5. first side mold; 6. second side mold. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5The utility model provides a technical solution: a dual-body thermostat base structure, including a base structure body 1, a mold cover 4 and a mold base 3 are respectively provided at the upper and lower ends of the base structure body 1, and a first side mold 5 and a second side mold 6 are respectively provided on the left and right sides of the base structure body 1. This structure enables the base structure body 1 to be injection molded through a mold composed of the mold cover 4, the mold base 3, the first side mold 5 and the second side mold 6. The base structure body 1 is provided with a first thermostat mounting hole 101 and a second thermostat mounting hole 102, and a cavity connecting channel 201 is connected between the first thermostat mounting hole 101 and the second thermostat mounting hole 102. The base structure body 1 is embedded with an inlay sleeve 2, and the cavity connecting channel 201 formed by the inlay sleeve 2 01, it replaces the core pulling process, avoids the problem of leakage risk caused by using a bowl-shaped plug to seal the opening after the core pulling of the traditional base cavity, the base structure body 1 and the embedded sleeve 2 are integrally injection molded, and the cavity formed by the mold cover 4, the mold base 3, the first side mold 5 and the second side mold 6 after the mold is closed is the same shape as the base structure body 1, this structure forms a mold bottom positioning structure through the mold base 3, the first side mold 5 and the second side mold 6 are closed after moving relative to the mold base 3, the mold cover 4 is clamped relative to the mold base 3 and then closed, the internal cavity is used for injection molding of the base structure body 1, when the base structure body 1 is injected, the embedded sleeve 2 is placed on the mold base 3, and the second thermostat mounting hole 102 on the embedded sleeve 2 and the mold base 3 The molded part is snap-fitted, and the inlay sleeve 2 is snap-fitted with the part of the mold base 3 for forming the first thermostat mounting hole 101. This structure pre-fixes the inlay sleeve 2 on the mold base 3 so that the inlay sleeve 2 and the injection molding material are integrally molded to form an embedded fixation of the inlay sleeve 2. The setting of the inlay sleeve 2 avoids the opening problem caused by the traditional core pulling, reduces the process of pressing the bowl-shaped plug, and reduces the machining process of the inner cavity of the base structure body 1, so that the production efficiency is higher. The inlay sleeve 2 is easy to demold by snapping, and the inlay sleeve 2 is located in the cavity connecting channel 201, so that the first thermostat mounting hole 101 and the second thermostat mounting hole 102 are connected through the inlay sleeve 2, and one end of the inlay sleeve 2 It is a blocking structure, and the opening at the other end of the embedded sleeve 2 is connected to the side of the second thermostat mounting hole 102. This structure enables the sealing of the end of the embedded sleeve 2 to prevent the injection plastic from entering the cavity connecting channel 201, so that the cavity connecting channel 201 is formed in one piece, and the opening of the embedded sleeve 2 is clamped with the part on the mold base 3 used for forming the second thermostat mounting hole 102, so that the other end of the embedded sleeve 2 is also blocked to prevent the injection plastic from entering the cavity connecting channel 201. A through hole is opened on the side of the embedded sleeve 2, and the side through hole of the embedded sleeve 2 is connected to the bottom of the first thermostat mounting hole 101. After the base structure main body 1 is demolded, this structure will connect the first thermostat mounting hole 101 and the second thermostat mounting hole 102.

[0020] Working principle: When using the dual-body thermostat base structure, first place the embedded sleeve 2 on the mold base 3, so that the side opening of the embedded sleeve 2 is clamped with the part of the mold base 3 used for forming the first thermostat mounting hole 101, and the open end of the embedded sleeve 2 is clamped with the part of the mold base 3 used for forming the second thermostat mounting hole 102. The mold base 3 is molded with the first side mold 5, the second side mold 6 and the mold cover 4, and then injection molding is performed. A mold base 3, the first side mold 5, the second side mold 6 and the mold cover 4 are formed between the mold base 3 and the first side mold 5, the second side mold 6 and the mold cover 4. After the injection molding in the injection molding cavity, the injection molding material wraps the embedded sleeve 2 so that the embedded sleeve 2 and the base structure body 1 are integrally formed. After the base structure body 1 is demolded, a cavity connecting channel 201 for connecting the first thermostat mounting hole 101 and the second thermostat mounting hole 102 is formed in the embedded sleeve 2. The cavity connecting channel 201 formed by the embedded sleeve 2 reduces the core pulling process and the plugging, grinding and other processes brought about by the core pulling process, so that the production efficiency of the base structure body 1 used for fixing the dual-body thermostat is higher, thereby completing a series of tasks.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual-body thermostat base structure, comprising a base structure body (1), characterized in that: The base structure body (1) is provided with a first thermostat mounting hole (101) and a second thermostat mounting hole (102), and a cavity connecting channel (201) is connected between the first thermostat mounting hole (101) and the second thermostat mounting hole (102). The base structure body (1) is embedded with an inlay sleeve (2), and the inlay sleeve (2) is located in the cavity connecting channel (201), so that the first thermostat mounting hole (101) and the second thermostat mounting hole (102) are connected through the inlay sleeve (2).

2. A dual-body thermostat base structure according to claim 1, characterized in that: The upper and lower ends of the base structure body (1) are respectively provided with a mold cover (4) and a mold base (3), and the left and right sides of the base structure body (1) are respectively provided with a first side mold (5) and a second side mold (6).

3. A dual-body thermostat base structure according to claim 2, characterized in that: The base structure body (1) and the embedded sleeve (2) are integrally injection molded, and the cavity formed by the mold cover (4), the mold base (3), the first side mold (5) and the second side mold (6) after the mold is closed has the same shape as the base structure body (1).

4. A dual-body thermostat base structure according to claim 3, characterized in that: When the base structure body (1) is injection-molded, the embedded sleeve (2) is placed on the mold base (3), and the embedded sleeve (2) is snap-fitted with a portion on the mold base (3) used for forming the second thermostat mounting hole (102), and the embedded sleeve (2) is snap-fitted with a portion on the mold base (3) used for forming the first thermostat mounting hole (101).

5. The dual-body thermostat base structure according to claim 1, characterized in that: One end of the embedded sleeve (2) is a blocking structure, and the opening at the other end of the embedded sleeve (2) is connected to the side of the second thermostat installation hole (102).

6. A dual-body thermostat base structure according to claim 1, characterized in that: A through hole is provided on the side of the embedded sleeve (2), and the through hole on the side of the embedded sleeve (2) is connected to the bottom of the first thermostat mounting hole (101).

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